Okay. Look at the moon. Look at every other planet not currently protected by an atmosphere. They all have craters. This fact is ignored by rote Geologists. "All the high and low points on the planet are due to plate tectonics and erosion!"
A set of [humans] start with a genetic baseline that allows them to more naturally jump higher or throw a ball faster than others. This is an indisputable fact. A different set have a more baseline genetic natural ability in other intellectual domains. This is also a fact.
These facts are absolutely disputable, in the sense that they might be very theoretically sensible, but not relevant in practice.
What good is a "genetic natural ability" that is theoretically there, when it cannot be extracted from the statistical noise. Not just for the person itself, but also for the parents.
The nature vs nurture debate is really hard because the data is so hard to get and disentangle. And that actually leads to another conclusion, that no matter where the truth falls, this "genetic predisposition" property only observable on big populations doesn't matter on the individual level in terms of decision making. And even on the population-level decision making it might not be relevant.
If an effect is too weak to measure, it's too weak to base decisions on.
