Aah, no, as a producer I disagree that customer generates the market for a new product. We are building a number of new products here today and some of what we are building does not have a market, we are hoping to create the market for it, just like iPads created a market that did not exist, just like production of kerosene created market for lighting with kerosene that did not exist, just like cars and trucks created market where before the role of the vehicles was carried out by horses and other forms of transport. Somebody steps in with their investment to create the market that did not exist because the item that is being created does not exist.
There is currently no gigantic market for yachts because they are very expensive. IF you can create a yacht and sell it at 10,000USD you will create a gigantic market for yachts that did not exist because the product was not in existence.
If you come up with a way to build a personal space vehicle and make it only as expensive as a car or so you will create a gigantic market that did not exist.
Of-course for all of this there have to be savings taken out of somebody's bank account first, spent to produce thing thing, which means hiring people (creating jobs, not because you want to create jobs, because you want to make money on selling into your new market), buying stuff from suppliers, renting some space, managing everything, marketing, advertising, selling, even going through the regulatory labyrinth and making sure you can actually offer your product to any potential customers, that's what investment is, that's what 'trickle down' economics actually are - using savings to produce and then allowing more economy to be generated around your production.