anotheraccount7
anotheraccount7 on Hacker News
People send postcards all the time precisely because for the most part they don't care about privacy in their mail. In my personal life I can't think of a single example where I sent mail that I wanted to keep private (outside of maybe mail that had my SS#). I think most people are rather indifferent.
"If you hide your mail inside envelopes, does that mean you must be a subversive or a drug dealer, or maybe a paranoid nut" The main function of the envelope is to tied a bunch of papers together so they don't get separated in the mail.
The pro-nature side would simply contend that wealth correlates with more advantageous genetics and that the success of their prodigy mostly has to do with the genetics they pass down, and less to do with the economic advantages presented to them
As for clearing out toxins. It's been known for years that sleep clears free radicals from the brain. That's why very long term sleep deprivation can led to brain damage, and why if you take modafinil you aren't shielded from the physiological adverse effects of sleep deprivations (though mentally you'll be fine).
I know that for instance in China wages have gone up, and now companies are more reluctant to build new factories there.