Get to be 70 and be on (or just over) the edge of the technical breakthrough you've been working toward more than full time for 15 years and part time for 30 ye

Get to be 70 and be on (or just over) the edge of the technical breakthrough you've been working toward more than full time for 15 years and part time for 30 years before that. Oh, wait. I guess that means I'd already found that fanatical resolve. :-) Seriously, I think the only way is unhealthy emotional involvement.