A trillion dollar invention Is it possible to make a trillion dollar invention or exploration? I mean an invention or exploration that will be valued at trillion dollars.
Sure, because dollars are nominal goods. Perhaps a ticket to Star Wars Episode CXVIII will cost one trillion dollars. If you meant today, without huge changes in the price level:
 Yes, there is way more than one trillion dollars of wealth in the world. Depending on the laws of physics and psychology there is probably something you would be able to market for this amount. (Private luxury homes in other dimensions.) Coming up with it is another question, but there is no law of economics that makes this impossible.