This the reason why photons have no rest mass. And you having a rest mass cannot ever reach the actual speed of light, only a factor of <1. If you were to tra

This the reason why photons have no rest mass. And you having a rest mass cannot ever reach the actual speed of light, only a factor of <1. If you were to travel with 95% of the speed of light your rest mass would increase by 3.2x ... at 99% by 7.1x at 99.9% by 22.4x and at 99.99999% by 2240x and so on. The Lorentz factor is infinite for the speed of light. Time "stops" and the object contracts to "zero" at c. https://www.1728.org/reltivty.htm https://www.1728.org/reltivty.htm