Came across this at a garage sale yesterday; had an interesting chat about it with the man seller but did not buy it; had walked all the way back to my car (it was at a street sale) when I suddenly realized I wanted it. For one thing, I could not recall the exact wording. Had some idea that "… would you think you were if you didn't know how old you were …" but this didn't seem right.
And it wasn't. The wording is perfect. I wonder who said it. (Just googled: Satchel Paige )
I expect to engage in some more thoughtful discussion with others about what is asked in the future.
But at the moment it has triggered a memory. When one of my sons was an adolescent he would often answer a query with an immediate "I don't know." One day, in frustrated inspiration, I said, "If you did know, what would you say." And he surprised us both by having an answer.
I used if often, after that, with him and we both benefitted.
Since then, I have used it with myself on all sorts of queries, internal and external. It is quite a lovely and worthwhile tool.
As to How old would I be if I didn't know how old I am – well, that depends …..