How is he better than Usain Bolt?
Bolt has a very good argument for the best athlete of the 21st century because sprinting is the most universal sport and he was the most dominant ever at it. Sprinting is a much more significant sport than swimming is.
Phelps's argument is that he dominated in a greater range of events (everything from 100m to 400m and in butterfly, freestyle, and medley) for a longer time (won gold medals from 2001 to 2016) and set a lot more records (39 in 5 different individual events plus 3 relays).
They're both good arguments.
They should've added 70 meters, 120 meters, 150 meters and 170 meters, and the same for relay for Usain Bolt
They should force swimmers to compete in like half of those things and them see who gets the highest average position and give them one medal. shyt is too similar to be different sports, or you wouldn't have people ending in (or close to) the top in so many different styles.
They're pretty even actually.
Swimming and Track have the same distance increments - 100, 200, 400, 800, 1500. Swimming has one shorter event and track has three longer events.
Swimming has 4 different strokes (6 freestyle, 2 backstroke, 2 butterfly, 2 breaststroke). Track has 8 running, 3 hurdles, 1 walking, 2 long jumping, 2 high jumping.
Swimming has 2 medley events, track has 1 decathalon.
In total, track has 17 individual events and 2 relays. Swimming has 14 individual events and 3 relays.
The only place I agree with you is that they should bush the 4x200m relay in swimming. Has no reason to exist.
shyt is too similar to be different sports, or you wouldn't have people ending in (or close to) the top in so many different styles.
That doesn't actually happen though. Normal great swimmers are elite in 1 swimming style, rarely 2. For Phelps to be elite in 2 strokes AND medley, and to win events all the way from 100m to 400m, was completely unprecedented.
Spitz and Biondi, the two most decorated male swimmers in history besides Phelps, only won individual golds in 2 strokes (freestyle/butterfly) and 2 distances (100/200 for Spitz, 50/100 for Biondi). Neither one ever won a single medley race or a single 400m race. There are 1-2 other swimmers who won gold in both freestyle and butterfly, but I can't think of any who won at medley too or who won at 100m and 400m both.
Most of the other great swimmers only won gold in one stroke. They might have competed at other strokes, but they weren't the best. It's not like the strokes are interchangeable - no one is ever elite at breaststroke and then elite at anything else. And it's extremely rare that anyone is elite at backstroke and then elite at anything else.
In track, you have 100m/200m doubles, 200m/400m doubles, 100m/110 hurdles doubles, and guys who have won 100m/200m AND long jump. You used to have sprinting/hurdles doubles too, I think Harrison Dillard was the last one to win gold in both though not because they're such different events, but because the competition is so strong in each one that you can't expect to top your event without specializing. In college there are guys that run both (and guys who run 100m/200m/400m) but you can't do that at the Olympic level and expect to medal.
Phelps's trump card is that he's won more distances (100m, 200m, 400m) and types of events (freestyle, butterfly, medley) than any other swimmer in history. Whereas Bolt never won as many different events as Carl Lewis and Jesse Owens (100m, 200m, long jump) won. He literally did the exact same thing in every single event he ever participated in - short distance sprinting.