That's the one thing I wish I had done was get a graduate degree or even a doctorate in a physical science, cosmology probably. Problem was after getting a BS in engineering school I was tired of school and needed to go out there and make money.

Anyway I love science and I read a lot about it, just wish I could understand the math for things like quantum mechanics and black hole physics. I could have done it, was good at theoretical math in college, but like anything if you don't use it you forget it and I'm retired now.

Problem with being a scientist is it takes the same effort as becoming a medical doctor, but without the high paying job at the end. I have a lot of respect for scientists, they do it only for love of the field because they sure don't get paid well.

I'd say go for it! Going back to school was the best decision I've made in a long time. The only thing holding you back is yourself! Hindsight I wish I did it years ago but that doesn't matter now, I did it. Do it for yourself if its what you truly want to do. Time keeps on moving, there is no point in putting it off. I did that for years, oh maybe next year... Well this is going on maybe next year.. go for it now! I believe!