What's the dumbest thing you thought as an adult that you recently learned was wrong?
I just realized while cooking that a measuring-cup cup (as measured out as 250mL in a glass measuring cup) is the same amount(s) as one of the actual plastic baking measuring cups that go inside each other like Russian dolls lol
I thought they were different somehow (something something imperial metric yadda yadda yaddda)
Your turn to come clean Lemmings!
**EDIT: to clarify, I mean volumetrically for measuring liquids
I thought that getting a degree in computer science may allow me to buy a home. That was wrong, unless you join a startup early, you will not buy a home.
I thought that doing a masters in bioinformatics will screw me economically when I saw the salaries of my CS peers that went to the market. That too was wrong, doing a multidisciplinary masters left no free time, so SO doesn't want kids.
I thought global warming will screw us only decades away, but that too is false. Don't have kids and economics won't matter in a few years (< 10, probably 3-5).
Owning a house: to an extent traps you in a physical location. Your job pool is smaller, and everyone you like who doesn't own a home eventually moves away. As a bonus, the longer that pattern goes on, the older you get, and the more difficult to replace the departed becomes.
No kids: You seem pretty upset about global warming and the economy. Not having children has to be one of the single most impactful environmental choices you can make. I don't have figures but your carbon footprint has to be a fraction of anyone with kids. Also, if systematic collapse is as inevitable and imminent as you suspect, it's a good thing you don't have any kid(s) for to be exploited by Tina Turner into fighting to the death in a big iron cage.