sounds like the bjj guy is an exception to the norm.. Trains when sick...saying that says to me he gets sick often enough to mention.. Health and sickness are opposite. I would guess he';s over training but its working for him...still

Waiting for a machine-well IMO there is a time and place for machines, Rarely in sport conditioning though. As a rule of thumb you couldn't pay me to train on a machine.

If I had genes and expression of them like that guy..I could probably do anything and get away with it for so long

Training technique when fatigued

If he can do it great! Though I don't think every day doing this sounds smart. Ground technique and stand up are very different. the stand up game is much more technical IMO. Many will argue and I know ground gets extreamly technical but let me try to explain..

On the ground the technical aspects come with a better and better opponent.

I think punching and kicking is much more dynamic than going for an arm bar or choke.

The more dynamic a movement the more difficult it gets technically.

I might not be using the right wording here as I'm sure some of the moves on the ground are very technical..

But explosive and dynamic while on 1 foot or predominantly one foot(most people have huge weight transfer while punching) is much different than wrestling for position.

Ones not better or worse and there is alot of technical in the ground game.

But its much easier to keep form trying fpor an arm bar than throwing a kick full force when tired IMO

Not sure if I explained what I'm thinking on that one there well.

I do know it takes much longer to teach a ground guy stand up than the othyer way round. At least in my experience.

I think there is way more going on in a kick than in an arm bar in terms of nervous system and co-ordination and dynamic intrinsic stabilization on a gross and segmental level etc etc etc

I think looking for trainers whos fighters always have gas would give better clues than individuals as there are so many factors from person to person. And to top trainers in other sports etc and thier philosophies etc

fatigue the nervous system and you'll be able to role better than to stand up and fight IMO