As others have explained you specify lbf or lbm to distinguish force vs mass. You use a reference assumption about the gravitational “force” to convert weight to mass.

If you want your mind really blown, know that gravity isn’t really a force. Weight is a lie!

Interesting, so I wonder if it’s like a pre-fight or flight deal. Your body anticipates a need for rapid breathing so it is planning ahead.

Because they are independent events.

Think of it this way - if you roll a die in Chicago and I roll a die in New York - they are not connected in any way. Agree?

Same is true if you roll the same die repeatedly in the same place. It has no memory.

It is possible to design a system that tries to balance outcomes explicitly so as to “load share” based on some memory but that is not how ordinary randomness works.