Thanks to all involved for the great information provided on this website. Your threads and responses have helped me enormously in the pursuit of a career. Unfortunately, I have more doubts now than I did before (100% my fault - nothing on your part). If you wonder why, here are the main reasons: - I am interested in learning how the world and universe work. - I have a great memory. - Having a highly lucrative career is of great interest to me. - I feel I lack the mathematical and thinking (analytical, critical, deductive) skills required. As you can see, the above does not mix quite well. I narrowed my choices down to Physics, Software Engineering, and Computer Science. Seems I might have to pursue another career path. In any case, thank you very much for your assistance. JJ.