Einstein was considered retarded at some point in his schooling.
Dave Thomas, founder of Wendy's.
The Wright Brothers.
And the crowning jewel for all newschoolers..... Tanner Hall.
However, this isn't saying that you should drop out of school, simply pointing out that you can be successful and be a drop-out.
I would also like to say that Apple Computing revolutionized the computer industry, both by inventing the visual desktop we use today and the mouse, while microsoft was stuck with a keyboard and MS-DOS. Early macs also had export issues because at the time there were very tight export laws on supercomputers, and macs passed the tests to be included in that category. Seriously though, computations to be done in science? I can't think of something remotely close to complicated enough that a mac couldn't handle it. Besides, do you think a comparable PC is what anyone uses? The standard at NASA is linux, not windows, not mac.