Re: "The problem with that "
Exactly. The laws of thermodynamics at work, ye canna change the laws of physics.
That's why I'm hoping someone else remembers the car park thing: that it was tried, tested, failed, and written about somewhere.
There tends to be less publicity for the failures and shutdowns than for the launches though, as exemplified by cold fusion, perpetual motion opportunities, etc, even though it's perfectly obvious it's not going to have a happy ending.