Hard science?
But it also makes me feel that, even though I'm in my late 30s, when I grow up, those people I love working with are who I want to be.
It may or may not prove to be unrealistic, but my plan is, after my kids are a bit older and we have saved a bit more liquid assets and have refinanced to a lower mortgage payment, to enter a graduate program for something interesting, and maybe keep working on software part time while I do that.