蒂姆与时间  悖论

A sc ientist c 
reates a time machine and kills  their y ounger self to se e what would happ e
n. And that s elf-obsess
ed, misanthrope, mad genius of a scientist  is Tim Tr
a
v
ers. And the  unive rse was bad 
enou  gh with only one of him.