Could Hirohito (Suzuki, etc.) have been convinced by bombs dropped elsewhere?

(our physicists were able to back-of-the-envelope; should their physicists have needed hundreds of thousands of civilian deaths to calculate what an A-bomb could do?)

So I think it's not obvious (multiple books have been written on the subject) what could or should have been done or not done back then; now, from my point of view, those cards have been dealt, for good or for ill.