I wonder how much debate it took for the original PI proofs to be accepted as fact. Because to prove a constant, you'd have to show that dividing by r^2 always yields the same #. With an infinite decimal, even using sig figs, wouldn't people argure you can't be certain it's 100% the same every time?



https://redd.it/1rrpr4n
@r_Showerthoughts

It's really convenient that the ice in our drinks floats up, and then the liquid it cools sinks down so the entire drink eventually cools evenly.



https://redd.it/1rpy7aw
@r_Showerthoughts

Phone cameras need a "junk photo" setting for all those throwaway photos you take to remember where you parked, what's on a menu, QR codes, and all the other random stuff we use them for now.



https://redd.it/1rrxgf9
@r_Showerthoughts

People probably faked illness to get out of work even in the hunter-gatherer era.



https://redd.it/1rpsb2p
@r_Showerthoughts

If there was an immortal mime, we probably wouldn’t know for a very long time.



https://redd.it/1rynxfy
@r_Showerthoughts

Dogs probably measure time by routines, not by hours.



https://redd.it/1rxeypd
@r_Showerthoughts

Regardless of belief systems, people generally don't seem to like being preached at.



https://redd.it/1rxjuhd
@r_Showerthoughts

So many parents will be forced to endure junior high choir renditions of "Golden."



https://redd.it/1rytcfe
@r_Showerthoughts

In 1998, The Truman Show was an outlandish concept. In 2026 it's a reality.



https://redd.it/1rysv7p
@r_Showerthoughts

You only have a lap while you’re sitting.



https://redd.it/1rwnflx
@r_Showerthoughts

The way you walk is unique, and you are unlikely to ever change your stride intentionally.



https://redd.it/1rz0mje
@r_Showerthoughts

With neural implants, we are probably close to a "Sleep Now" switch for the human brain.



https://redd.it/1rvbcwt
@r_Showerthoughts

Squirrels and guinea pigs both figured out how to solve the rat charisma problem, but in different ways.



https://redd.it/1ruksmj
@r_Showerthoughts

In the Star Trek universe, accidentally being brought to the future but not being important enough for Temporal Investigations to immediately try to send you back to your own time must be deeply depressing.



https://redd.it/1rugleh
@r_Showerthoughts

The fact that C-3PO has a seam running alongside his head suggests he is made from deep-drawn stamped sheet metal halves.



https://redd.it/1rsxtj6
@r_Showerthoughts

There are Cedar trees in N.Idaho that predate the Julian & Gregorian calendars.



https://redd.it/1rzfdbe
@r_Showerthoughts

You can bracket the clade Euarchontoglires by using their immunity to chocolate.



https://redd.it/1rzozzi
@r_Showerthoughts

There are likely untold numbers of people living in LA County who are one degree removed in the game "Six Degrees of Kevin Bacon" by merit of the fact that they were caught in traffic at the same time, and don't know it.



https://redd.it/1rzwfvp
@r_Showerthoughts

Sometimes if I'm curious what a celebrity's home looks like I google their name + 'house'. This method does not work for Hugh Laurie.



https://redd.it/1s6fdf1
@r_Showerthoughts

Playing card corners are rounded because square corners would wear down faster, making it easier to tell cards apart.



https://redd.it/1s5ob0h
@r_Showerthoughts