Group Rationality Diary, May 1-15

therufs

This is the public group instrumental rationality diary for May 1-15.

It's a place to record and chat about it if you have done, or are actively doing, things like:

Established a useful new habit

Obtained new evidence that made you change your mind about some belief

Decided to behave in a different way in some set of situations

Optimized some part of a common routine or cached behavior

Consciously changed your emotions or affect with respect to something

Consciously pursued new valuable information about something that could make a big difference in your life

Learned something new about your beliefs, behavior, or life that surprised you

Tried doing any of the above and failed

Or anything else interesting which you want to share, so that other people can think about it, and perhaps be inspired to take action themselves. Try to include enough details so that everyone can use each other's experiences to learn about what tends to work out, and what doesn't tend to work out.

Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating!

Next diary: May 16-31

Immediate past diary: April 15-30

Rationality Diaries archive

This is the public group instrumental rationality diary for May 1-15.

It's a place to record and chat about it if you have done, or are actively doing, things like:

Established a useful new habit

Obtained new evidence that made you change your mind about some belief

Decided to behave in a different way in some set of situations

Optimized some part of a common routine or cached behavior

Consciously changed your emotions or affect with respect to something

Consciously pursued new valuable information about something that could make a big difference in your life

Learned something new about your beliefs, behavior, or life that surprised you

Tried doing any of the above and failed

Or anything else interesting which you want to share, so that other people can think about it, and perhaps be inspired to take action themselves. Try to include enough details so that everyone can use each other's experiences to learn about what tends to work out, and what doesn't tend to work out.

Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating!

Next diary: May 16-31

Immediate past diary: April 15-30

Rationality Diaries archive

I've been told that it's unnecessary for having clean hair and possibly unhealthy. So not using it saves me time and money with basically no effort, and possibly I gain some health benefits (I haven't looked into this, but see the Wikipedia article).

saves me time and money

C'mon. Showering and shampooing takes me maybe half a minute longer than showering without shampooing, and a half-litre bottle of the shampoo I use costs around three euros (around four dollars) IIRC and lasts about half a year.

3falenas10813y

Note: NASA and the Soviet union both did studies on this, and it failed to replicate.

3Desrtopa13y

Perhaps if your hair is particularly dry, this won't pose you problems, but if I go too long without cleaning my hair with anything other than water, it becomes visibly oily. Humans secrete waterproof substances through glands particularly concentrated in the scalp, so a buildup should not readily be cleaned through water alone.