in 20-30 years? han zinda rahi tab na... ab ki life kuch khas nahi chal rahi, if 20-30 yrs baad time machine me wapas aaungi toh isi 2016 me pahunchungi... jiska no value.. so it's not for me.
acha how that possible from a stone? then why they are using water to convert electricity?
c'mon how someone can travel to past? that's not possible... btw this remind me of big bang theory and that large hadron collider.. .. one person need a source to travel at the speed of light.