With his general theory
of relativity, he discarded the traditional notion
of space and time as fixed and redefined them as flexible dimensions woven
together to create a four - dimensional
fabric that pervades the
universe.
That should illustrate just how big the fight against Thanos will be, as the heroes
of the MCU (excluding the Defenders, sorry) must band
together to save not only the
universe but the very
fabric of reality.