Well......actually, he's been to Tiwanaku and discovered their pyramid points directly at both Stonehenge and the Great Pyramid in Egypt.....and found 5,000 year old carvings there showing clearly European, African and Chinese figures on the temple wall. So he's pretty convinced already that ancient man.....got around. Conventional archaeology states this is all just coincidence as ancient men simply didn't have the tools to calculate things like this, he's trying to prove it damn well isn't and yes they did.
What he's expecting to find from this is that if enough people respond with a dot on the star chart then if he compiles all the dots together it should vaguely resemble a map of the earth. The hard part of producing a map in this fashion is ensuring all the dots put on the map are done at the same time, the only way to do this without a clock is to use some celestial event like a lunar eclipse.....hence why sites like Stonehenge were built to calculate moon cycles down to an accuracy of 20 minutes. Conventional archaeology dictates that every single site like these were built by charlatans who wanted to be able to fake a magic trick once a year and calls astrological archaeology a 'fringe science'.