Earlier quoted context omitted.
Consumer demand is meaningless. Trying to push it is like trying to push a string. Demand is an artefact of production. Unless your economy is producing, you won't increase quality of life and wealth for all citizens. This point is obvious, but gets completely lost in all the frenzy around 'stimulating demand'. To buy something, first you have to produce something worthy of exchange. Everyone has to start from this p…
Why would you produce something for what there is not demand? Is not this the first lesson for start ups? searching for a market-product fit? Do you agree that the goal of a business is profit? Ergo, is the prediction of profits what create production. This is the core of the capitalist system, isn't it? If a business don't see profit in its future, the rational thing to do is decrease production and, more important,…
I'll reiterate: 'To buy something, first you have to produce something worthy of exchange'.
To understand this, don't immediately jump to the business level, think of it at the individual level. If I want to buy something, first I have to produce something worthwhile, so I can exchange that thing for the other. It's unlikely that the exchange is going to be direct (barter) and it will take place using the medium of currency.
I think your understanding of demand is slightly askew from the economic definition of demand.
Entrepreneurism is precisely what you have described - the creation of new products where future consumption is uncertain. It is vitally important as an agent of change in any economy - and incidentally is the first victim to central planning.
But that is incidental to the issue of requiring production before consumption. If I want something, first I have to make/do something which has value for someone else, then they can trade the thing that they made/did and that I value. We are both better off, wealth has grown. The issue here is that people think that just giving currency to one of us so we buy the thing off the other is the key to growth. When it is patently obvious that 'stimulating demand' by giving someone money can't possibly grow wealth (and the economy in the same way).