Cars are a LOT cheaper to make than when they were first made.
No they're not. They're just as expensive as ever, you just need to account for scale...which you're not doing because if you did, it would ruin your argument.
Computers are a LOT cheaper to make than those old mainframes too.
Right, but computers already existed, so you're not creating a new product, you're just improving on one for which demand already exists.
The demand is for the IMPROVED product, not the product itself.
This is why most businesses fail; the people running them have no fucking idea what they're doing.
If an product is cheaper, more consumers will buy it. See Walmart for details.
Not if they don't have the money to buy it.
Nope. Incentive increases to increase production and to make the product even cheaper to produce. I guess you don't get the idea of competition, do you? You are operating under some weird model of a closed economic system.
Increasing production doesn't make the item cheaper to produce...it means it costs MORE to produce because you're INCREASING your production. But if there is no demand for your shitty product, then all you're doing is deflating its value by producing more of it. And just because something is cheaper doesn't mean people will start buying it...like what happened with Shale and Fracking...so much of it was produced that its value has diminished which has pushed hundreds of companies into trillions of dollars of bankruptcies because they did exactly what you're saying here...overproduce a product to drive down its cost to make it appealing for consumers to buy...but if consumers don't have the money to spend to buy it, then all you've done is deflate the value of your product on the market and completely erased any possible ROI.
Again, you are the best example of why most businesses fail.