|Sorry, perhaps I don't understand fertility biology|
And it happens in most things I do:
"I was once a kid, I know how to do parenting"
"I went to school, so I know what it's like running a course of 400 students"
"I once owned a milk bar, I know all about marketing"
So you can see why I love skydiving. Nobody has ever said "I've stood on a tall building, skydiving would be easy".
Generally, if people are offering opinions in skydiving, they know what they're talking about. The "instant experts" are few, and generally nobody is listening.