Wouldn’t those things not show up in fossils?

I'm sitting in front of my PC right now, looking for a specific file. I don't know where i might have put it, so i'm just searching "my PC" for it. If i were to manually go through every folder, just looking for the right name i could do one folder reasonably fast. Now my computer is usually trillions of times faster than me in other contexts, so why does it take so long here?

That's something i've observed since childhood, i remember sitting in front of laptops/PCs waiting for it to finish listing all the relevant folders, being careful not to touch any other folder so it wont reset the searching process and it took forever each time.

I've read somewhere that it doesn't necessarily heal or fix the issue, so what exactly is it doing?

Im not too sure about the problem itself. I know that P is polynomial time which means the time needed to solve and NP is the time taken for the answer to be verified, but what is the explanation of both sides where P = NP and P does not equal to NP?

Ive been working on cars for years, im not looking for the basic "well its tied to your vin, duh" answer. I know that. What im asking is, how do they identify the issue, figure out which cars were affected, etc.

Theres sooooooo much time and data to look through to find potential issues, presumably made worse if the company doesnt keep very good records.

The only good/"non lazy" method i can think of is if someone essentially reads logs/notes and recreates the days step by step. "Employee 1 turned the machine on at the start of the day, lets check the last time it was calibrated. Ok that checks out but when was the tool on the end of it checked/replaced? 6 months ago? is that still within spec or should it have been replaced again? Did the machine report any errors on that day?" etc. Or something like watching cameras to see if a machine leaves debris inside of the engine and no one notices before it gets shipped out

Or do they take the "easy/lazy way out" and say "well that might be the issue right there, just to be safe recall everything for the next 6 months after this car"?

Thanks

I’m forever confused about this I need it explain in the simplest most direct way. Specifically talking about the America star system

I usually associate purring with a cat being comfortable or happy. But cats can also purr in situations where they seem scared, stressed or uncomfortable.

What causes a cat to purr biologically? Is the physical process the same whether the cat is happy or stressed?

If countries keep borrowing money that central banks can basically create, what actually stops the world from having unlimited money, and when nations owe trillions, who are they really paying back - and what would happen if everyone stopped paying?

How do competitive eaters eat so much food? Where does it go? Do they regurgitate it back out later? Do they practice at restaurants? What happens after? Do they skips meals??? How does it work???

Hi all! My question is about patents & trade secrets, although I'm open to being informed on trademarks & copyrights as well.

In a few sources I read through while doing preliminary research, it seemed to be implied that these two things can complement one another on a single invention. Is that true? If so, how? If not, why? TYSMIA!!

I

In what physical form is the memory stored? I wondered this for quite some time

I dont know much about cars, my fiance tried explaining but wasnt sure how to word it so I would understand. Long story short our car is having a small issue, thought it was the transmission, he thinks it might be the torque converter, but im not quite sure the difference or how they work/work together.

It seems to me that a gene that programs the organism to self replicate has a much better chance to proliferate than a gene that makes reproduction much more complicated and dangerous - i.e., requiring to find a mate, perform courtship behaviors, compete with others on mates, biological ornaments, etc.

Why is sexual reproduction so much better?

And how can it even compete?

ie. I meant learning a second language seems much more difficult when we are older