Posts

Welcome to Rationality Graz [Edit With Your Details] 2020-01-19T21:11:57.958Z

Comments

Comment by Lukas T on Fight Akrasia and Decision Fatigue with DIY Productivity Software · 2021-02-01T08:18:43.152Z · LW · GW

All my tools are just Windows desktop applications built on old technology, C# and Windows Forms, using a simple file for data storage. The Facebook API is extremely limited due to privacy considerations, IIRC it does not allow fetching a list of your friends. Therefore I just implemented everything using web automation.

Comment by Lukas T on A study on air purifiers and birth weight · 2021-01-31T19:51:29.808Z · LW · GW

Thanks for bringing up the issue. I think air purification is neglected, both in terms of research aswell as in implementation.

For a general overview of the cost-effectiveness of air purifiers, have a look at my EA forum post [1]. The conclusion of that post was: Placing air purifiers in peoples homes is plausibly good enough to qualify as an “effective” or even “highly effective” health intervention according to WHO criteria.

[1] https://forum.effectivealtruism.org/posts/umzu3RGBBhA3fefhw/cost-effectiveness-of-air-purifiers-against-pollution

Comment by Lukas T on Fight Akrasia and Decision Fatigue with DIY Productivity Software · 2021-01-31T19:42:41.326Z · LW · GW

I have had very good experiences writing my own productivity software. Many of them were so useful, they paid back the time invested in developing them after less than a year.

Some examples of tools I wrote and still use regularly:

  • An application called "event radar", helping me build my calendar of social events for each week.

  • Personal contact management software. Key feature: import contacts from my phone and Facebook, organize my friends into groups and auto-invite to events based on their interests

  • A very simple recipe management software, helping to optimize protein per kcal and cost per kcal. It produces shopping lists. May upgrade it in the future so it automatically sends grocery orders.

  • Software for catching all small tasks and errands. Key feature: It auto-selects the next task to work on. Turns out, this feature alone makes errands vastly easier to handle. It was exactly the feature I needed for my particular psychology, which underscores the point raised in your article.

Comment by Lukas T on Why indoor lighting is hard to get right and how to fix it · 2020-11-04T14:40:30.584Z · LW · GW

Thank you, great post! I especially liked your insight on the color rendering index.

There are some reports that LED lighting can damage your eyes. From a quick glance at Wikipedia, the evidence does not seem very convincing, but I'm not an expert. What do you think about those claims? https://en.wikipedia.org/wiki/Biological_effects_of_high-energy_visible_light#On_eye_health

And if there is no particular danger from LEDs: Is there an inherent danger in looking at high-lumen lights (regardless what type of light it is)? At which point do we have so much brightness in one small spot that it becomes dangerous?

Two relevant links: https://www.reddit.com/r/science/comments/5m8sn7/leds_may_cause_retinal_toxicity_at_occupational/ https://www.reddit.com/r/photography/comments/d5ag44/how_many_lumens_is_safe_for_eyes_over_long/

Comment by Lukas T on March Coronavirus Open Thread · 2020-03-10T09:34:03.168Z · LW · GW

When to cancel events due to Coronavirus? Calculations by Linch Zhang [1], I've put them into a Guesstimate with some slight changes and adaptions for Austria [2]

[1] https://docs.google.com/document/d/1A0jcxj4n0BvNt_jMunHT5WSsAKFzuVJJyaaqcK9Z1HU/edit#

[2] https://www.getguesstimate.com/models/15367

Comment by Lukas T on March Coronavirus Open Thread · 2020-03-10T09:31:35.354Z · LW · GW

Dating during Coronavirus: What's the risk of going on a date with a random new person at the height of an outbreak? https://www.getguesstimate.com/models/15381

Under my assumptions, if 1 in 7700 people gets newly infected every day, it translates to an infection risk of 0.2% per encounter (range of 0.45% - 0.053%). Feedback welcome.

Comment by Lukas T on Is there any value in self-quarantine (from Coronavirus), if you live with other people who aren't taking similar precautions? · 2020-03-10T07:01:43.018Z · LW · GW

This question (“will I get infected if people in my household are sick?”) was asked in the recent Reddit AMA with experts. Keep in mind I didn't verify the original sources.

“It is possible to stay uninfected! Yesterday in a press briefing, Dr. Nancy Messonnier at the CDC said that the secondary attack rate among family members of confirmed COVID-19 cases in the U.S. is 10.5% so far. So that means that about 1 in 10 family members who have been exposed by a relative have gotten sick.”

Here’s the posting and some more comments about this issue: https://www.reddit.com/r/Coronavirus/comments/fdf5fq/we_are_a_team_of_medical_experts_following/

Comment by Lukas T on Coronavirus: Justified Practical Advice Thread · 2020-03-04T14:35:24.910Z · LW · GW

What is your source for this? The CDC recommends hand sanitizer in cases where washing is not easily possible. https://www.cdc.gov/coronavirus/2019-ncov/about/prevention-treatment.html

Studies confirm the efficacy of hand sanitizer against enveloped viruses [1][2]. Although there is some evidence that handwashing is preferable against viruses [3].

[1] https://academic.oup.com/jid/article/215/6/902/2965582

[2] https://apps.who.int/iris/bitstream/handle/10665/44102/9789241597906_eng.pdf;jsessionid=D50A762FABCFB1569406859669F8FAD4?sequence=1

[3] https://msphere.asm.org/content/4/5/e00474-19