Some of this discussion might have to be revised if the startup is active in a health or scientific field. For example, people entering the Chemistry field wit

Some of this discussion might have to be revised if the startup is active in a health or scientific field. For example, people entering the Chemistry field with a PhD tend to be 30+, particularly if they post-doc. I would imagine if fully-trained (i.e., post resident) MD's are required, you might see people approaching 35+. So, while they're on the wrong end of the power curve, they're what you have to deal with. Fortunately, for the startup incubators, there are few scientific endeavors that lead to a useful exit strategy. Unless, of course, you're trying to start a biotech or pharma startup. And at that point, you're 1-2 orders of magnitude more expensive as physical plant and even regulatory approval start to enter the picture. Medical endeavors are probably information based (deal with privacy and patient access issues, hence MD's) which is easier to handle. If they're medical devices, you'll face approval processes, I think, similar to pharma. Possibly faster in that there aren't so many steps in the clinical trial process - devices tend not to have a tox problem, for example.