When having a discussion about new discovery it makes me smile when people quote such stuff.Energy cannot be created nor destroyed
Physical laws only apply today because we don't know any different. Who is to say whether or not this will be true in 500 years or so.
I'm not thinking nuclear fission, fusion of any other type of atom fiddling ... Something TOTALLY NEW ... The first time someone realises that if you focus plasma through a dilithium crystal the output reaction is 1000000 times more than the energy which created it, then we have a new power source ... Good old Gene Roddenberry
But not whilst we are still fannying around with internal combustion, solar, wind, tidal or any other form of natural arse.
Get with the program luddites
MW