There are many eye related problems and defects of the eye, the main few are briefly discussed below, Defects of the eye, Myopia, nearsightedness
So broad that I narrowed it
to one question: What's different?
After searching my brain, virtually EVERYTHING in sales and marketing had an analogy in past practice. The differences are merely levels of sophistication..except one thing.
You can now profit wildly from your failing. Specifically, this applies to credit, but there are ways to make it happen with other goods and services too.
To use a metaphor, you are a contractor who "helps" your neighbor remodel his house...then you get to take out insurance on HIS house, guessing (knowing?) it will burn down. This is effectively what's happened to credit markets.
You provide "credit" (a product) and then get to re-package that and take a credit default swap against it so that you make money if it succeeds, and make even better money if it fails: Incentive to sell bad products to people who you know (hope) will never be able to pay. This allows you to basically take 2 book values on one asset so magically you appear to be worth twice or more as much. In real terms, there are booked values of 600 trillion when ALL the physical assets in the world only add up to about 200 trillion.
This is what the politicians want to protect (even when they pretend they don't). It's a marketing ploy that affects EVERYONE in the world.
That's what's different in marketing: The ability to win big when you lose if you know how to manipulate things. No, not really an issue for a 1099 forum except that everyone here is a pawn in some fashion.