If there is anything that I have learned about strength in these last few years is that it is progressive.
Ultimately humans seem to have been built for explosive strength and endurance for long hikes. But how would Grok go from heaving a 20-lb rock to a 50-lb one.
Since he also had to master the same skills as a modern day decathlete, how would he go about it?
On a slightly unrelated note, here is a sweet clip from "Walking With Beasts"
This is exactly what I imagine when I do my sprints.