I want to pet the big cat

Same as OSs, but with Linux you choose when to update. Why would be browsers different?

What do you mean? We understand them well enough that we can predict the gravitational waves of a black hole merger.

In Linux you can use the open source nvidia drivers if you want

In the case of dx as an infinitesimal it makes sense. You are making a sum of all the values of the function in the integral range and multiplying with a constant dx.

If you were using nonstandard analysis with dx an infinitesimal you could put it outside I guess. Maybe with differential forms too?

True, but labor rotation is also common in anarchist communities

Toby Fox cooking a fire soundtrack and then making a game to have something to put it into

In most cases no. Sometimes they let their developers contribute to the open source projects for a small percentage of their working time.