the whole point of duty time is that it has basically the same end result, and no full blast then waiting is not the same thing as shorter bursts over a longer time..
one wonders why nature saw fit to give us pain receptors throughout the urethra, like was that necessary?
surely like a centimeter in would have sufficed?
AFAIK bread was quite a bit more expensive in the past, since baking involved getting up hours in advance to start a fire inside the massive earthen oven, not to mention that all the other parts of making flour were also way more difficult than they are now..
I think it might be comparable to meat these days? Something that everyone eats, but at the same time most people on some level realize that it's actually pretty fucking expensive and they should eat less of it, but it's just so normalized and tastes good so they just keep eating it every day.
(And for reference meat in the past would have been much more of a luxury, not in that people were vegetarians or anything but they'd just have less meat in every meal and they wouldn't turn their nose at organs and "low quality" stuff like we do.)
you're thinking of like, being choked, i presume. the difference is that choking directly cuts off bloodflow to the brain, but if the bloodflow isn't disturbed then there's a decent bit of oxygen stored in the air in the lungs and in the blood itself.
this is how animals like whales can dive for hours at a time, they store oxygen in their blood.
The thing that actually makes you feel the need to take a breath is buildup of CO2, not lack of oxygen. My understanding is that holding your breath isn't really about the amount of oxygen you have but rather how long you can resist the urge to breathe, though presumably at these extremes they do have to pay attention to how they feel and abort if they start feeling tired or whatever low oxygen does to you.
all i can say is that i've been barefoot for a couple years now and.. it's fine? never really had an issue beyond cold and sharp gravel (especially when it's on a hard surface)
male bees' testicles explode