
I discovered portals can be used only once, OMG BRO! Don't make me get a physics PhD before I pass the SECOND LEVEL!
I rolled the box onto the button after edging past having teleported directly over it. There is no way to jump so I don't get how I can have the cube on the button and, simultaneously, be on the other side of it to get where I need to.
Second thoughts, write me that paper on portals, please.