A Prophecy that has come true:

The 2004 Tsunami in the Indian Ocean

Perhaps the most amazing example of Cayce's predictive abilities was his predict of the Tsunami in the Indian Ocean. This event occurred on December 26, 2004, but Cayce saw it in April of 1941: “Watch for strife in ... the Indian Ocean.... Ye say that these are of the sea; yes, for there shall the breaking up be.” Edgar Cayce Reading, 3976-26 – April 28, 1941.

A Prophecy yet to come:

Can a Perpetual Motion Machine Be Designed -
a Machine That "Fuels" Itself?

"[900]: You will have before you the gasless motor invented by [4666].
"EC: Yes, we have the body and enquiring mind of [4666], also the associations and those conditions surrounding the perfection of motor which will develop power in its own action. As has been given, the idea and the plans as have been worked out in part along those lines that pull more of the power as produced in compression in drum, with the leads made in these forms that gather vibrations from the air as is forced through drum, are, as we find, the better application of the created energy. In the cams [as] have been used too much slack or play is allowed in their rotation. This is in the drum's head action that these must be shortened in play.
"The connection of [195] and [900] with same - best that these have [4666]'s operations closer under their observations when the completed product is near attained.
"(Q) How may we bring him under our observation? (A) Bring him to ... Ohio or N.Y.
"(Q) Is this machine the same as brought to Washington now by Lindbergh? [Charles A. Lindbergh] (A) No. As is here, the [4666] machine would operate on stationary conditions impelling forces; even for now that in gas motors - for, as tested by others, has more to do with that thrown in air and gaining its impelling force from that source.
"(Q) Would it operate perpetually if perfected? (A) Not perpetually, but once started could be kept in motion by created energy of its own source. Other has to have some source of impellation." Edgar Cayce reading 4665-1 – March 8, 1928