How Come Cosmic Inflation Doesn’t Break The Speed Of Light? If it can stretch the Universe from the size of a subatomic particle to billions of light years in a fraction of a second, why doesn’t Einstein’s relativity forbid it? – Ethan Siegel March 24, 2020science, spacehistoryscoper https://medium.com/starts-with-a-bang/how-come-cosmic-inflation-doesnt-break-the-speed-of-light-182d6bc8e7b0