Originally Posted by TCF
This is not simply guessing. Its tennis history. There are no cases we can find in tennis history of a guy being fully tennis dedicated from age 5 for 10-12 years, growing at a steady pace, and not reaching his approximate ceiling after those 12 years.
When you make obviously ridiculous statements like this you lose all credibility. At some point it does not matter what good observations you may have because no one can take anything you say seriously.
The top ranked 17 year old in the world is ATP #553. No one thinks the current 17 year olds have reached their “approximate ceiling”. Plenty of them have been playing for 12 years and are tall.