The Bootstrap Paradox
You receive a strange machine and a note that says “This is a time machine, recreate the time machine and send the machine back in time to the day you received it (today).” Bewildered, you set to work to recreate the time machine. When you are done and have tested it, you send the original machine and the note back in time to the day you received it.
You didn’t create the machine you received from yourself, where did it come from?
–u/Artemy_fluffball
Fix the atmosphere? You are too stupid to converse with any further.