I am a descendant of fairly strong guys - one grandfather was a rural blacksmith, the other one started as a lumberjack before going to the (still coal powered) railway to coal the engines. I inherited quite a lot of their physique from them, which means that I can do quite good in a gym without trying much.
Yes, that feels unjust. Not that I am depressed about it, but it is definitely something you ponder upon: why this guy who works so much harder than me does not see as much return on his effort?
That traits for fitness are heritable? That is "a thing"? Hmmm, you might be onto something here.
And I am not even surprised, the possibility of governments latching onto this and "streaming" people towards whatever they are found to be gifted at, cannot really be dismissed.
Wow, that's a humblebrag taken to the next level.