Merry Christmas, Prepare To Die
You travel back in time and lock the door. You are now safe to assume that the presents will be safe and-
Wait a minute. You look down at your hands - they seem to be fading. The entire world seems to be fading! You rush back to your big wheel, but it's too late. Space and time collapse upon you - with no reason to travel through time, you never do... but since you travelled through time to do that, you've created a paradox.
Somewhere, an alternate you enjoys Christmas morning. You, however, experience the ungodly pain of your molecules bending and twisting throughout a destroyed reality before finally being erased from existence.
Merry Christmas.
Wait a minute. You look down at your hands - they seem to be fading. The entire world seems to be fading! You rush back to your big wheel, but it's too late. Space and time collapse upon you - with no reason to travel through time, you never do... but since you travelled through time to do that, you've created a paradox.
Somewhere, an alternate you enjoys Christmas morning. You, however, experience the ungodly pain of your molecules bending and twisting throughout a destroyed reality before finally being erased from existence.
Merry Christmas.