Ye olde FTL Jojo debate. Just off the top of my head, here's a list of things that happen in Jojo that make no sense if stand users are FTL. The only way these scenes make sense with FTL Jojo is if literally everything in the Jojo universe is hyperdurable and regular Jojo humans are FTL as...
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Oh boy.
Let's just tackle this mess one step at a time.
1. Even if you can react to a projectile being fired at you at a comparable speed, it being able to change direction on a dime would still be tricky to deal with (ignoring that Polnareff literally DID see it change direction when it was in front of Silver Chariot's sword). And yes that literally would make Avdol light speed/FTL for reacting to it.
2. It's a shit ton of projectiles also being thrown by a superhuman FTL vampire. 'Nuff said.
3. He's just that durable then. Not a hard concept to grasp.
4. Can be explained by either Jotaro not wanting to kill them, i.e. holding back, or again, Stand users being just that durable.
5. Anime physics lmao
6. That's not what was stated. It was a comparison made between the speed of a normal human and a bullet train, not literally stating that that was how fast Made in Heaven was going.
Star Platinum reacting to a bullet point blank is much faster than a bullet train.
7. Straizo was caught off-guard iirc, and the grenades were already completely wrapped around him by the time they were detonated. How the hell is he supposed to dodge then?
8. To be honest, I can't really think of an argument against this one.
9. You said it yourself. Again, it's an estimation that's so far below Star Platinum catching a bullet in between its fingers when it was fired point blank at Jotaro that it should be dismissed entirely.
10. Travel speed = / = reaction speed. 'Nuff said.
11. Also anime physics lmao
12. Bullets and missiles created by another Stand. 'Nuff said.
13. Again, Jotaro was explicitly holding back in that fight and was letting himself get hit on purpose. This would also make Ratt FTL, needless to say.