Jack’s thread on Vipassana meditation is fascinating.
It’s significant, I think, that he sees it as a practice that is of value primarily when he returns to work. He likes it because it enables him to refresh and then return to doing more of what he did before.
There is no suggestion, in his thread, that he regards his personal practice as being part of any wider, more selfless contribution to life and the world. It’s simply a method of personal betterment, a hack.