I can't tell if I'm misreading point 1, barely rephrasing:
Special relativity disallows faster than light travel because it requires moving faster than light.
I can't gain a lot of insight from that point.
Special relativity disallows faster than light travel because it requires moving faster than light.
I can't gain a lot of insight from that point.
It should be: "Special relativity disallows faster than light travel because you need to cross the lightspeed barrier".
Another way of putting this is: we know because of special relativity that you can't just strap a lot of rocket boosters on a spaceship and expect to go faster than light. That won't work; if you want to _travel_ faster than light, you have to do it another way.