[itsoktocry]

These things are relatively physically demanding if your baseline is sitting at a desk.

But hammering a rod into the ground for 15 minutes, or holding some weight over your head, or carrying weight in your toolbag are not things that break your body down; they build your body up.

[DanielHB]

They do if you do the same type of motion over and over for years on end.

[jf22]

Nothing is more hacker news than somebody downplaying how physically demanding a trade is.