Hoe do you make a paper plane fly forever? Either you find a way to launch it into the upper atmosphere and then hurtle around the Earth at 8km/s without burning, or you watch this video.
Viral Video Lab demonstrate how it's actually relatively easy to use a cooker and a specially-designed plane to keep a glider aloft, using micro thermals.
Needless to say, if you're trying this at home take care - it seems like an easy way to send a burning load of paper straight at the kitchen table to us.