"Meet Wally Wallington, a retired construction worker in Michigan. He's building a Stonehenge replica in his back yard, and he's using only levers and fulcrums. His equipment consists of sticks and stones. No wheels, no cranes, no pulleys, no metal or machinery. His favorite tool, and best ally, is gravity. There's a YouTube video of Wally raising a 19,200-lb concrete beam up into the air and tilting it up onto its end, just like at Stonehenge. He can also raise these beams horizontally into the air as high as you'd like, with little apparent effort. It's simply good old fashioned human ingenuity. All he does is lever the block enough to slide a fulcrum under its center, turning it into a giant teeter totter. Weight down the east end, and slide more wood in just west of the center. Move the weight to the west end, transferring the mass onto the west end of the fulcrum, and slide in more wood just east of the center. Back and forth, back and forth, going higher each time, rocking its way into the sky."
a video appears next... this may have been the video that convinced me, but I'm not sure. but I would say that it answers the mystery quite well. thus Wally guy seems to come up in my early searches.
surely, being close to this subject you've heard of him then. so I presume you have something to say on Wally's presentation and probably this article.