Originally Posted by zinglebarb

Time is purely a human invention due to our mortal existence and everything we perceive having a beginning and an end of course the opposite is true time as we know it is infinite both past and future as is distance its just because we are born live then die we have no way of grasping infinity. As for time travel and paradoxes we could be in one as we speak we would not know. If something was changed we would have no conscience knowledge of it. Germany may well have won WWII but someone from the future may have traveled back in time and constantly spiked Hitlers drinks with LSD for all we know