Ah, I see what you're saying! I think in my case I'm just not that concerned by the hypothetical because my parents haven't done sequencing/genetic screening a

Ah, I see what you're saying! I think in my case I'm just not that concerned by the hypothetical because my parents haven't done sequencing/genetic screening and also aren't likely to. I guess the main question is how far out in my family tree I have to think about that. (Also has implications for my descendants, I suppose...)