What is the quickest route to world domination for the average person?
I’m not at all sure that an “average person” could achieve world domination. I’m not even sure that “world domination” is possible. (Even Bill Gates hasn’t quite managed it.) However, the quickest route would probably be something like: Achieve leadership of a world power, preferably the strongest world power. Then use that country’s military and doplomatic resources to take over the world. It might be even quicker if you could somehow manage to set off an all-out-nuclear war and survive it to pick up the pieces, but the world you had dominion over wouldn’t be very enjoyable. Another way would be to set loose an easily transmitted plague with a very high mortality rate, say 85% or better. Just make sure you have a way to survive so you can take over afterwards. Good luck!