I've ran every day for the past 1000 days (14.9mi/day, 24km/day)

An overview of the 14914 miles and things I learned in an interactive blog post:

On your last point, it makes me think one must be genetically blessed to make it to top 250. Having a naturally great running economy is a cheat code.

It is cool how far you can go in running off sheer work alone though. It’s part of what I like about the sport

working on ambush and /noms :: nouns stan

hmm yeah I tried not to think / write about "genetic potential" because it's hard to measure anyway, and there's not much point dwelling on something I can't change

BUT I THINK OTQ-ing is probably possible for "anyone" with work

To be top 250, you need a coach and doing this for your daily job. Pro athletes have and entire staff behind that optimize every aspect of your body. 
Doing it by yourself is almost impossible.