"There will come a point sometime in your life (for me that was the ripe old age of 14 or 15) when you realize that you are simply not smart enough to make the cut."
Chess playing ability is not a good measure of intelligence.
Chess playing ability is not a good measure of intelligence.
In the same way, most of us would never be able to compete at any given physical sport no matter how much time we put in.
Chess playing ability is probably a good correlation with higher intelligence (if intelligence is measured by strong working memory)