Since the 1970s, String Theory has been fiddled with and tooled around as a means of unifying all fundamental forces and all forms of matter. There’s always been a problem bringing together the calculations of how our world operates on a large scale and of what gravity can affect, and the small quantum world of calculations where things begin to get weird and nearly unpredictable when dealing with small particles like atoms and electrons. The two world’s seem incompatible. The main problem has always been figuring out how gravity fits in to both worlds.
Well, in 1997, theoretical physicist Juan Maldacena proposed a model where the mathematical world of String Theory operated as a hologram and the larger world of the cosmos operated on more of a flatter realm where there is no gravity.
Irene W. Pennington Planetarium 