## Posts

Meetup : First Medellin, Colombia Meetup 2017-04-17T23:03:56.274Z · score: 0 (1 votes)
Meetup : First Bogota, Colombia Meetup 2017-01-22T06:02:48.464Z · score: 0 (1 votes)
Meetup : First Cali, Colombia meetup 2012-06-04T13:49:35.558Z · score: 3 (4 votes)
Meetup : Waterloo Meetup 2012-01-23T05:49:54.931Z · score: 2 (3 votes)

## Comments

Comment by jpulgarin on The Cartoon Guide to Löb's Theorem · 2020-05-19T06:27:13.176Z · score: 1 (1 votes) · LW · GW

Thanks Sam. I thought about this some more and realized where I went wrong - I was applying the deduction theorem incorrectly (as other comments in this thread have pointed out).

By the way, when you say that PA proves its own inconsistency, do you mean that or that ? From your reasoning I agree that if we assume then we can arrive at and , from which we can conclude that . If you meant that though, could you explain how you arrived at that?

Comment by jpulgarin on The Cartoon Guide to Löb's Theorem · 2020-04-20T10:36:15.784Z · score: 2 (2 votes) · LW · GW

I don't think there's a flaw in this argument. I'm pretty sure that is a theorem of PA for any sentence . However, even if we consider to be a sentence like , that does not mean that we can conclude that is a theorem of PA, since proving that there doesn't exist a proof for a given sentence in PA is equivalent to proving that PA is consistent, which is not possible if we assume that PA is consistent.

Comment by jpulgarin on Meetup : First Bogota, Colombia Meetup · 2017-02-14T02:50:32.420Z · score: 0 (0 votes) · LW · GW

Sorry :/, it was my fault for posting it at such short notice. No one else came.

There's a chance I'll be back in Bogota during the first week of March. If so, I'll make sure to post it with a bit more notice.

Do you go to Medellin every once in a while? I'm thinking of starting a regular meetup here.

Comment by jpulgarin on 2012 Less Wrong Census/Survey · 2012-11-05T05:41:04.342Z · score: 4 (4 votes) · LW · GW

Largely a result of Salsa dancing.

Comment by jpulgarin on 2012 Less Wrong Census/Survey · 2012-11-04T23:50:40.025Z · score: 2 (2 votes) · LW · GW

Why?

Comment by jpulgarin on 2012 Less Wrong Census/Survey · 2012-11-03T23:20:37.307Z · score: 25 (25 votes) · LW · GW

Do casual sex partners count under the "Number of Current Partners" question?

The instructions tell me that higher numbers are for "polyamorous relationships" which makes it seem like a monogamous person who has multiple casual sex partners should answer 0 for that question.

Comment by jpulgarin on Where do selfish values come from? · 2012-10-30T23:25:35.817Z · score: 0 (0 votes) · LW · GW

I genuinely do not understand how you were insulted by my comment. Could you please explain it to me so I can avoid in the future.

Note, I am not purposely insulting you in this comment.

Comment by jpulgarin on Incentives to Make Money More Effectively, Should We List Them? · 2012-10-30T23:22:50.642Z · score: 2 (2 votes) · LW · GW

find tickets for free for strange trips around the world (there are loads)

Can you please elaborate?

Comment by jpulgarin on Where do selfish values come from? · 2012-09-13T03:25:05.734Z · score: 0 (0 votes) · LW · GW

There's no disagreement here, you're just confused about semantics.

Comment by jpulgarin on [Link] Social dance and cognitive maintenance · 2012-07-29T20:11:31.373Z · score: 0 (0 votes) · LW · GW

I see in a reply of yours that you're interested in salsa dancing. By far the most important factor in getting better is to quickly achieve a level of competency that makes salsa socials really fun. I don't think I've gone more than 7 days in the last 2.5 years without attending a salsa social, and this has been the biggest factor in my improvement.

You may already be at this stage since you said you enjoy dancing, but if not I suggest you learn the basics from a friend or a class (I would spend no more than 10 hours on this stage), and then force yourself to attend a bunch of salsa socials, until you start really enjoying the experience.

Once you've reached this stage, you've solved the motivation problem, and now you can optimize towards becoming a really good dancer (if you even want to at this point - it's not necessary to reap the majority of the benefits).

Comment by jpulgarin on [LINK] Daniel Pink talks about Motivation · 2012-07-29T19:55:35.543Z · score: 0 (0 votes) · LW · GW

This is the best description of a fairly strong chess player's thought process that I've read. If it were worth the effort, I would link every person who asked me, "How many moves deep do you calculate in chess?", to your comment.

Comment by jpulgarin on Chess Analyst "solves" King's Gambit · 2012-07-29T19:49:27.093Z · score: 0 (0 votes) · LW · GW

If the King's Gambit was actually solved, it would be trivial to solve the rest of chess.

Comment by jpulgarin on Meetup : First Cali, Colombia meetup · 2012-07-08T23:24:44.726Z · score: 0 (0 votes) · LW · GW

Nadie llego a la meetup. Creo que si haces un meetup en Bogota (escojer un tiempo y un sitio), y te comprometes a estar ahi, van a llegar varias personas.

Comment by jpulgarin on Meetup : First Cali, Colombia meetup · 2012-06-07T22:04:55.823Z · score: 0 (0 votes) · LW · GW

Ah bacano, vas a los meetups de Seattle?

Comment by jpulgarin on Meetup : First Cali, Colombia meetup · 2012-06-07T22:04:14.151Z · score: 1 (1 votes) · LW · GW

Yo estoy pensando estar en Bogota en los proximos meses, si quieres podemos urganizar una meetup en ese entonces. Tambien podriamos hacer algo atravez de Google hangouts. Te mandare un mensaje privado para cuadrar.

Comment by jpulgarin on Meetup : First Cali, Colombia meetup · 2012-06-04T21:42:25.609Z · score: 0 (0 votes) · LW · GW

VIves en Cali?

Comment by jpulgarin on Experiment: a good researcher is hard to find · 2012-04-30T18:54:22.803Z · score: 2 (2 votes) · LW · GW

I'm interested.

Comment by jpulgarin on To like each other, sing and dance in synchrony · 2012-04-29T10:49:11.283Z · score: 0 (0 votes) · LW · GW

I go out social dancing 2-5 times a week.

Comment by jpulgarin on A puzzle · 2012-04-14T08:19:36.945Z · score: 1 (1 votes) · LW · GW

I'm fairly sure we're limited to 16 chess pieces available to white, otherwise the problem can be trivially solved with 64 queens.

Comment by jpulgarin on A puzzle · 2012-04-14T07:45:23.971Z · score: 1 (1 votes) · LW · GW

So the set of pieces you can use is eight pawns, one queen, one kind, two bishops, two knights, and two rooks?

Can the bishops be placed in squares of the same colour?

Comment by jpulgarin on Minicamps on Rationality and Awesomeness: May 11-13, June 22-24, and July 21-28 · 2012-04-10T00:07:04.710Z · score: 2 (2 votes) · LW · GW

Jasen Murray suggested specific techniques and specific resources, which I unfortunately cannot remember (I was not that interested in that part of RBC).

Comment by jpulgarin on Minicamps on Rationality and Awesomeness: May 11-13, June 22-24, and July 21-28 · 2012-04-10T00:04:58.441Z · score: 2 (2 votes) · LW · GW

The food at RBC was awesome, mostly due to a small number of attendees being very good cooks. Many of us also had similar fitness goals with regards to gaining muscle, so we had a 25 pound tub of protein, and cooked high-protein meals.

My diet has been nowhere near as good since leaving RBC.

Comment by jpulgarin on Minicamps on Rationality and Awesomeness: May 11-13, June 22-24, and July 21-28 · 2012-04-10T00:00:11.154Z · score: 0 (0 votes) · LW · GW

RBC was mostly young college age students (oldest participant was 29 years old if I recall correctly. I believe I was the first or second youngest at 21). The median age for the minicamps was probably a bit higher, but not substantially so.

Comment by jpulgarin on Minicamps on Rationality and Awesomeness: May 11-13, June 22-24, and July 21-28 · 2012-04-09T23:56:52.586Z · score: 1 (1 votes) · LW · GW

The previous camps were held in Berkeley, and I'm fairly sure these will be held there as well. They also picked up the camp participants from the airport last time.

Comment by jpulgarin on Suggestions on tech device/gear purchasing? · 2012-03-19T18:04:12.376Z · score: 1 (1 votes) · LW · GW

I highlight things, mostly new ideas, that I want to memorize as I'm reading the book (the number of highlights is a good proxy to how good the book was). Then I login to Amazon, and for each highlight I make an Anki card.

This saves me from having to go through the book and find all the highlights, and also from copying the text into Anki (since I can just copy and paste).

Comment by jpulgarin on Suggestions on tech device/gear purchasing? · 2012-03-19T04:01:20.444Z · score: 3 (5 votes) · LW · GW

A kindle has finally allowed me to start reading one book per week, something I've been trying to do for quite a while now with little success. The ability to buy books instantly, and the fact that it's much easier to take along than an actual book, means I get a ton more reading done. The ability to highlight and have it automatically sync to Amazon servers makes Anki deck making A LOT easier.

You can also sell your gift card for ~80% of its value (just google "sell gift card").

Comment by jpulgarin on Which College Major? · 2012-02-06T21:48:16.097Z · score: 0 (0 votes) · LW · GW

Retracted.

Comment by jpulgarin on Which College Major? · 2012-02-06T18:09:13.217Z · score: 0 (0 votes) · LW · GW

This is why I said "average" venture-backed founder. You may have tons of assets such that losing/gaining 10% is not a big deal, or you may be naturally less risk-averse than the average person.

Some level of risk-aversion is rational, and it's not obvious to me if people are naturally over or below that level. it's also not obvious to me at all that people on LW would have unnaturally low risk-aversion.

Comment by jpulgarin on Which College Major? · 2012-02-06T18:03:48.347Z · score: 2 (2 votes) · LW · GW

The exact figure I'm aiming for is $5 M USD or above. I'd quit trying to make money as soon as I hit$5 M basically.

Comment by jpulgarin on Which College Major? · 2012-02-06T10:53:08.438Z · score: 1 (1 votes) · LW · GW

It's more or less win/lose. Being the average venture-backed founder actually has negative expected utility.

Comment by jpulgarin on Which College Major? · 2012-02-06T10:51:11.768Z · score: 4 (4 votes) · LW · GW

I've spoken to Carl about the subject and he pointed me to this paper: http://www.nber.org/papers/w14219

This paper puts the success rate of venture-backed companies at ~18%.

Comment by jpulgarin on What are you working on? February 2012 · 2012-02-06T10:39:49.016Z · score: 4 (4 votes) · LW · GW

Name amnesia (I saw you mention this on the link you gave).

I think this as a result of:

1. My prior that you're a good hypnotist
2. My prior that I am a suggestible person
3. My prior that this can be done through online means
Comment by jpulgarin on Top 5 regrets of the dying [link] · 2012-02-06T10:35:09.910Z · score: 1 (1 votes) · LW · GW

However, it doesn't seem to specify why the very end of life is a significantly more important time than say, the first 12 weeks after turning 65.

It's probably not - I was simply replying to your point about how all 12 week periods of life are equally valid.

Comment by jpulgarin on Top 5 regrets of the dying [link] · 2012-02-06T03:36:17.371Z · score: 0 (0 votes) · LW · GW

More time to think about past experiences and also more time to see their long-term consequences.

Comment by jpulgarin on Which College Major? · 2012-02-06T03:16:58.393Z · score: 1 (5 votes) · LW · GW

Should I care more about making money or doing something that I have a "passion" for?

Depends on what your passion is. If it's something that allows you to make a lot of money, and doesn't otherwise obstruct you from taking part in other things that you enjoy, then your best bet would probably be to choose that - even if there is another, passionless option, which gives you more money.

If on the other hand the things that you are passionate about you do not make money (which will hamper your ability to produce utilons in a variety of ways), then your best bet will probably be to become wealthy by means of doing something you're not passionate about. With something like tech entrepreneurship you can become a millionaire in 5-8 years, and then focus on producing utilons at optimal exchange rates for your entire life.

Personally, I'm not passionate about any careers that make a ton of money, so my current plan is to become a millionaire through tech entrepreneurship, and then focus on studying/writing philosophy and dancing afterwards.

Comment by jpulgarin on What are you working on? February 2012 · 2012-02-06T03:05:21.198Z · score: 0 (0 votes) · LW · GW

How long have you been doing this?

Comment by jpulgarin on What are you working on? February 2012 · 2012-02-06T03:04:32.013Z · score: 0 (0 votes) · LW · GW

What is your 15 minute morning ritual?

Comment by jpulgarin on What are you working on? February 2012 · 2012-02-06T03:01:51.845Z · score: 4 (4 votes) · LW · GW

I'm totally willing to by hypnotized by you. I'm also willing to bet I cannot be hypnotized.

Comment by jpulgarin on What are you working on? February 2012 · 2012-02-06T03:00:07.985Z · score: 17 (17 votes) · LW · GW

I noticed throughout your post you said "turns out she didn't like me" twice, as if this was a simple boolean value that you have to find out the value of.

The truth is that attraction is pretty malleable and it's totally possible that your friend had romantic interest in you which disappeared while having dinner with her, or that the potential date that cancelled on you twice was turned off through non-physical interactions (texts, phonecalls).

Your 3 step action plan sounds solid though. The fundamentals of pick up artistry will also help a ton.

Comment by jpulgarin on What are you working on? February 2012 · 2012-02-05T16:32:37.824Z · score: 9 (9 votes) · LW · GW

I used a combination of google and reddit.com/r/waterloo to find voice coaches in my city (Waterloo). I settled on the two that looked best, and am now getting 1 half hour session a week from each of them to A/B test which one is better. It costs \$20 per half hour session.

I told them that my goal was to have a captivating voice that gets people's attention in small/large groups. They both said that learning how to sing was really important in terms of my stated goals, so right now I'm learning the basics of singing. This includes how to warm up your voice, properly breathing with your diaphragm, bringing up the soft-palette on command, etc...

We also go over the speeches that I am going to present in my public presentation class, which I find incredibly useful. For example, we'll go over the same sentence in a paragraph about 15 times, ensuring that I have correct diction, tone of voice etc...

Comment by jpulgarin on What are you working on? February 2012 · 2012-02-05T16:03:42.540Z · score: 12 (14 votes) · LW · GW

I am currently trying to become really socially effective. During the next 8 months I plan to:

• Take voice coaching *
• Take a public presentation class at my University *
• Join debate club *
• Join toastmasters *
• Get a telemarketing job
• Get a door-to-door sales job
• Become a competent pick-up-artist
• Take an improv acting class

"*" means I'm currently doing this activity.

Comment by jpulgarin on How I Ended Up Non-Ambitious · 2012-01-30T13:01:35.964Z · score: 0 (0 votes) · LW · GW

I haven't encountered the rationalist ethic of "psychological pain is unimportant". Can you link to it?

Comment by jpulgarin on What's going on here? · 2012-01-28T12:43:10.563Z · score: 0 (0 votes) · LW · GW

Why is this sam0345 character so heavily downvoted?

Comment by jpulgarin on Tell LessWrong about your charitable donations · 2012-01-24T05:39:15.999Z · score: 4 (4 votes) · LW · GW

One wouldn't put all of one's money into one stock in the market because we have decreasing marginal utility towards money. If we didn't and all we wanted was the highest expected value (which is how we should optimize for charity), then we would put our money into the stock that is likeliest to make us the most money.

In other words, I don't want to have a minimum number of lives saved - I want to maximize the number of lives I save.

Comment by jpulgarin on Startups as a Rationality Test Bed? · 2012-01-23T10:13:01.111Z · score: 1 (1 votes) · LW · GW

This would only be useful if there is skill in tech entrepreneurship, and it's not just luck. The fact that previously successful entrepreneurs have a higher success rate points to that, but it's hardly conclusive.

Comment by jpulgarin on khan Academy - Rationality series? · 2011-12-12T08:39:29.275Z · score: 12 (12 votes) · LW · GW

Creating good exercises for traditional concepts that form the building blocks of rationality is probably the best way to go about this. Once you've shown that you can create engaging exercises, and have formed relationships with people at Khan Academy, your suggestions will have more weight and you can create more experimental type exercises. Sal can only create about 10 videos a day, and the requests he gets from teachers using Khan Academy in actual classrooms (or from the people giving him funding) probably trump those he gets from people on a rationality blog.

For anyone reading this who wants to create an exercise teaching Bayes' Theorem, first read the Github Wiki. You can also get help from Khan Academy employees and volunteers in the HipChat room.

I'm an ex-intern at Khan Academy (who worked quite a bit on the exercise framework) so feel free to email me any questions or to get me to look at your pull request. My email is jp@julianpulgarin.com.

Comment by jpulgarin on Akrasia Tactics Review · 2011-12-02T06:32:17.159Z · score: 2 (2 votes) · LW · GW

Youtube video is down :(

Comment by jpulgarin on What you think about them · 2011-12-02T06:30:43.647Z · score: 0 (0 votes) · LW · GW

Count me in: http://www.admonymous.com/jpulgarin

Comment by jpulgarin on Meetup : First(New?) Waterloo Meetup · 2011-11-11T00:53:00.315Z · score: 1 (1 votes) · LW · GW

Awesome! I'll be back in Waterloo in January and I hope these continue till then. I had plans to start them myself.

Comment by jpulgarin on Attention Lurkers: Please say hi · 2011-10-23T00:52:24.409Z · score: 5 (5 votes) · LW · GW

Hi