The point at which you learn enough about something to be humbled by it is a point of progress. I think the poker community at large can often be a bit arrogant, (myself included), but we need to step back and appreciate the complexity of the game once in a while.
The problem is this is a logically impossible question because you can't measure the third circle.
You're walking down a long tunnel with no end in sight. You don't know how long the tunnel is. You've walked 5km (this is what you know), you can see another ~1km in front of you (this is what you know about). What percentage of the tunnel have you walked down?
It's impossible to answer without knowing the total length of the tunnel.