Do designers use left or right hand (and to what extent)?

"Hebrew was originally chiseled in stone."
"Do we actually know this?"
I was kidding. This was so obviously a faulted statement, I didn't bother to respond.

”Handedness is a complex behavior,” Dr. Geschwind said, ”and no complex behavior has ever been shown to be due to only a single gene without any environmental influence.”

and if the above is true, then: "I refer to is my belief that people are born with a predilection to favor one hand over the other."
...must be a faulted belief.

Cheers!