Lawrence Summers, resigning as president of Harvard University, stated, "I have reluctantly concluded" that schisms "make it infeasible for me to advance the agenda of renewal that I see as crucial."

Far be it from me to question the president of Harvard, but I had thought the word was "unfeasible". Is there any nuance of distinction between infeasible and unfeasible?

Perhaps now we know why he's resigning!

We might have to ask Larry, but from my investigation they seem to mean exactly the same thing..."not capable of being carried out."

The suffix un is a more anglic one, and in- a more latinate one. That being said, I'd prefer in-. Goes better with feasible.

Infeasible sounds better to me.