I don't think that we need a mathematician, just a calculator. The math is simple if we just round off and say that a second on the island equals a minute off, then we can explain the rocket. But, did the rocket hit the island time warp right away or at the end? I think that would change the calculation some, but the idea is still the same.

But, you guys are missing my point, they told rousseau the date and she hated that she had been there so long....and alex is the age, 16, corresponding to her time on the island.

There is not a time warp, but a time buffer on the island.