Oh good, that does make me rest easier. Though technically the units should be man-hours (or bacterium-hours?). Now this makes me wonder how many life-hours there have been...looks like ^40 'beings' over all time[0], and ^43 being-hours total.

Fun math!

[0]Crockford et al. (2023) estimate about 10^30 cells exist today, and between 10^39 and 10^40 cells have ever existed on Earth.