This is the best tldr I could make , o f b i g d i c k s p a r t n e r s h i p b e t w e e n b i g l o t s a n d d i c k s s p o r t i n g g o o d s m e a n s b i g savingsforholidayshoppers . html reduced by 85 %. I ' m a bot The last question was asked for the first time , half in jest , on May 21 , 2014 , at a time when humanity first stepped into the light . quotAll the energy we can possibly ever use for free . Enough energy , if we wanted to draw on it , to melt all Earth into a big drop of impure liquid iron , and still never miss the energy so used . All the energy we could ever use , forever and forever and forever . quot Lupov cocked his head sideways . Jerrodd felt uplifted , as he always did when he thought that his own personal Microvac was many times more complicated than the ancient and primitive Multivac that had first tamed the Sun , and almost as complicated as Earth # 039 s Planetary AC that had first solved the problem of hyperspatial travel and had made trips to the stars possible . Extended Summary Version 1 . 65 , ~ 24706 tldrs so far . % 23 autotldr PM ' s and comments are monitored , constructive feedback is welcome . Top keywords Multivac # 1 time # 2 Earth # 3 energy # 4 first # 5