J writes...

Yove mentioned before that the reason Aquaman doesn't have his "water-bolt" power is because he is not a sourcerer, and only Atlantian sourcerers have hard-water power...now in the comics, the only reason Aquaman can communicate with sealife is because he is a direct decendant of the most powerful Atlantian sourcerers...
My question is, how are these points reconciled on Earth-16? If his telepathy with sea-mamals is not the product of sourcery, why can only he do it (or am I assuming too much)?
And if it is the product of sourcery, even inately, wouldn't it be a simple task to learn such a minor technique as the "water-bolts"?