▁The ▁Time ▁Machine . ▁ ▁It ▁is ▁uncertain ▁if ▁time ▁travel ▁to ▁the ▁past ▁is ▁phys ically ▁possible . ▁For ward ▁time ▁travel , ▁outside ▁the ▁usual ▁sense ▁of ▁the ▁per ception ▁of ▁time , ▁is ▁an ▁extens ively ▁observed ▁phenomen on ▁and ▁well - under stood ▁within ▁the ▁framework ▁of ▁special ▁relativ ity ▁and ▁general ▁relativ ity . ▁However , ▁making ▁one ▁body ▁advance ▁or ▁delay ▁more ▁than ▁a ▁few ▁mill iseconds ▁compared ▁to ▁another ▁body ▁is ▁not ▁feas ible ▁with ▁current ▁technology . ▁As ▁for ▁back ward ▁time ▁travel , ▁it ▁is ▁possible ▁to ▁find ▁solutions ▁in ▁general ▁relativ ity ▁that ▁allow ▁for ▁it , ▁such ▁as ▁a ▁rot ating ▁black ▁hole . ▁Tra vel ing ▁to ▁an ▁arbitrary ▁point ▁in ▁spac etime ▁has ▁a ▁very ▁limited ▁support ▁in ▁theoretical ▁physics , ▁and ▁usually ▁is ▁connected ▁only ▁with ▁quantum ▁mechan ics ▁or ▁w orm hol es , ▁also ▁known ▁as ▁Ein stein - R osen ▁brid ges . ▁ ▁History ▁of ▁the ▁time ▁travel ▁concept ▁▁ ▁Some ▁ancient ▁myth s ▁dep ict ▁a ▁character ▁ski pping ▁forward ▁in ▁time . ▁In ▁H indu ▁myth ology , ▁the ▁Mah ab har ata ▁mentions ▁the ▁story ▁of ▁King ▁Ra iv ata ▁K ak ud mi , ▁who ▁travel s ▁to ▁heaven ▁to ▁meet ▁the ▁cre ator ▁Bra h ma ▁and ▁is ▁surprised ▁to ▁learn ▁when ▁he ▁returns ▁to ▁Earth ▁that ▁many ▁ages ▁have ▁passed . ▁The ▁Buddh ist ▁P ā li ▁Can on ▁mentions ▁the ▁relativ ity ▁of ▁time . ▁The ▁Pay asi