The human body doesn’t have a static number of “things.” Cells divide and die. Microorganisms come and go with each breath. How do you define “thing?” Do we hav

The human body doesn’t have a static number of “things.” Cells divide and die. Microorganisms come and go with each breath. How do you define “thing?” Do we have a finite number of thoughts at any time? A finite number of sensations? Of gut bacteria? The universe presumably contains a finite number of stars, but knowing that doesn’t get us closer to counting them, much less describing their interactions.