What is "fusionists"

Usage examples of "fusionists".

But Fusionists knew they had the talent and there was never one that didn't trade on that.

The energy supply was recorded and could be inspected, but even so, Fusionists had been known to organize the records in such a way as to leave themselves some leeway for that second Jump.

But perhaps whatever it was in the Fusionists' brains that made them Fusionists and allowed them to go, by sheer intuition, beyond the best of computers might be particularly complex and therefore particularly vulnerable.