Cryopods are not scientifically required for travel at or near the speed of light because time essentially ceases to pass for the traveler in that frame of reference.

“If you were traveling the speed of light, you don't need cryopods >> because there is no time. Well, there is time, just not from your frame of reference. >> You get there as soon as you left.”

He maintains that "now" is an illusion because motion and distance alter the perception of time, meaning a universal "now" does not exist.

“there's an illusion of now because we're so close together and we're so small the speed of light makes it feel like we have a now right but now doesn't really exist on larger scales there's no such thing”