Other How long before time destroys all earthbound evidence of high tech humans having lived on earth? Pick the things we made that will last the longest in the deep time record and calculate their durability in prove to future aliens that we were here, and we made stuff!

I've thought about this question a lot in my life, maybe from watching the land of the lost series and thinking about whether the evidence of intelligent life in Dinosaur era would have been erased in 60-200 million years, and how entropy just wears down stuff.

[Weve sent probes off into deep space where they're unlikely to be destroyed by anything, and will probably outlast earth so let's ignore those (or if it's possible to put an expiration date on how long they will continue to be recognizable as manufactured machines while reserved by a vacuum, calculate that too)\]

Will the junk we left on the moon or Mars outlast the bodies they are permanently sitting on?

How long before time destroys all earthbound evidence of OUR high tech civilization? What things might last the longest? Plastics? How long can they last in deep oceans, buried in sedimentary rock? Will highly machined metals of low reactivity last billions years in the right environment? What will be the "index fossils" that mark our age, OUR "half sunk shattered visage" of Ozymndias?

How many millions or billions of years will highly advanced aliens be able to sleuth that "intelligent life with technology lived here"?

https://redd.it/1u5l3yc
@TheyDidTheMath

[Request] Is that true ?
https://redd.it/1u5mqfk
@TheyDidTheMath

[Request] How fast did John fly to Space and return back again on Earth in 2:30 seconds?

https://redd.it/1u5n1tm
@TheyDidTheMath

[Request] Is this true?
https://redd.it/1u5pjcj
@TheyDidTheMath

[Request] Working these hours what would the pay be to become a trillionaire in his lifetime
https://redd.it/1u5qf10
@TheyDidTheMath

[request] I doubt this. But I'm not good at maths so, plz.
https://redd.it/1u5spzy
@TheyDidTheMath

Like in "The Boys", how fast would a super powered person need to run to liquefy another person? [request]
https://redd.it/1u5s8wf
@TheyDidTheMath

[Request] Is this true?
https://redd.it/1u5vya1
@TheyDidTheMath

[Request] How much water or ice would i need to quench the sun?
https://redd.it/1u5x40l
@TheyDidTheMath

[Request] is it possible to know?
https://redd.it/1u5vvf8
@TheyDidTheMath

[request] How Much Calories, sugar and alcohol does this drink have?

https://redd.it/1u5ygld
@TheyDidTheMath

[Request] How many beers would it take to fill the Las Vegas sphere?
https://redd.it/1u63j3p
@TheyDidTheMath

[Request] How many Americans have actually been broadcast on TV
https://redd.it/1u5qhmh
@TheyDidTheMath

[request] how fast was the jeep going through this parking lot?

https://redd.it/1u5wd71
@TheyDidTheMath

[Self] If an alien offered you a 1-week trip with the catch that 15 years pass on Earth, how far could you actually go?
https://redd.it/1u664bw
@TheyDidTheMath

[Request] How high would the average man have to stand to ejaculate three metres?
https://redd.it/1u66xqs
@TheyDidTheMath

[Request] Assuming no alteration to the size of the pre-existing states, how big would the USA in this map be?
https://redd.it/1u68co1
@TheyDidTheMath

[Request] Is this true?
https://redd.it/1u6abqo
@TheyDidTheMath

[Request] Jeff Bezos wealth. Seems very true but would like to know the math behind it
https://redd.it/1u6c485
@TheyDidTheMath

[Request] Is this still true in 2026?
https://redd.it/1u6cnk0
@TheyDidTheMath

If the driver bit a (very large) pothole and all the tires went off, how high would they go? [request]
https://redd.it/1u6dsgw
@TheyDidTheMath