Many years ago on a blog now gone I wrote much the same as outlined in this article.

https://futurism.com/the-physics-of-death

I took it a bit further. I contend that when a new life begins it draws its energy from the finite pool of energy. Thus, once our energy is released by death it returns to the finite pool and gets distributed to new life as needed.

Not sure where Karma or reincarnation fits in here. I suspect the distribution is random and bits of my energy could easily end up in a worm as it could end up in a world champion motorcycle racer. Still, it is nice to think we might have some control.