Greetings gentlefriends. I have a bit of an odd situation, and I'm hoping to hear your opinions on the matter. I am currently a 4th year medical student, and I fully intend to continue my career as a physician. I however feel as though, after working in the field of medicine for some time I will eventually want to pursue my other passion, which is physics. Do you think a slightly greater than middle aged individual could/should pursue a degree later in life in the field of physics? As an aside, could any of you suggest any sites where someone such as myself could study and learn physics on their own free time. Thank you all for any advice you may have!