His main points are about thinking less dogmatically. He is a scientist, and he states the importance of science, he is only exploring the idea of moving beyond the dogma, and he is both qualified and well-spoken enough to earn a listen.
He makes valid points such as how science can't deal with the fact we're conscious. That's true. Science is still in the dark about consciousness. He proposes that our minds extend beyond our brains, which is an exciting and interesting idea worthy of consideration.
He talks casually, not conclusively, about the sensation of being stared at, which many of us are familiar with. He draws parallels with predator-prey relationships in nature.
He says "it may seem astonishing that this is a topic of debate within consciousness studies right now." [the question of "where" the images in our mind actually are]. And he is dead right.
Quite frankly, we need more outside of the box thinking. Don't take tokenadult's click-bait here. This talk is not centered on the speed of light, nor does he take aim at science in general.
If you want your quantum computers and interplanetary space travel to come online, you'll need to open your mind to everything including ideas presented in this talk.
Well done TEDx.