I wrote a very nicely crafted 100-page dissertation proposal in about 7 weeks when hypomanic. For context, it seems to take most people 6 - 12 months to write a proposal.

My work takes a sharp turn for the better when I'm in an elevated mood. Being able to see all the connections between things is an enormous advantage - though sometimes they are a bit off-the-wall, so it's a good thing I have other people read things over before I send them out.

I may have had one full manic episode many years ago, but I don't remember any particular brilliance coming out of that. Mostly just stuff that I actually do regret doing, which is pretty unusual for me.