From dreamer to "dreamer" (predictor). The first want to create all in one marketplace the other applaud his idea and tell his that the materialization of this idea will make that him to control the world market. Someone other maybe will go even a little more. Will tell that this materialization will help him to rule the market in the moon when this market will be created.

Wake up people. Give constructive ideas about the idea of OP or if you cannot do this. Congrats with him and encourage him to realize what he want. But don't tell bullshits. Those maybe can damage him.