I am a big swimming fan.  My favorite is Michael Phelps, who is the most awarded Olympian of all time.
He is a legend, unlikely to be matched in our lifetimes. He was designed to swim.
I believe you are right.  He won eight gold medals in 2008 alone!
I watched him win those. He is an extraordinary athlethe.
Yes he has 23 gold medals.  By far the most all time
I don't think anyone will surpass that any time soon. Just an amazing accomplishment.
Yes, it broke Mark Spitz record in 1973 
Wow, I did not know that. In fact I never heard of Mark Spitz before.
Mark Spitz was a nine time champion and used to have 7 world records