Before digital computers existed, humans were the computers! (first referenced as an occupation in 1613)

Skills are transferable, though there definitely are many cases where people aren't able to access the tools and education they might need to make the most of their talents because of lack of privilege and systemic oppression (which basically means facing more obstacles to gain access to the same tools and education as the most privileged get handed to them).

So when you were born definitely matters, but so does where, to who, what gender you were assigned at birth, how abled or disabled you are, and so on and so on..