Globally the US didn't have deflation
Government computed inflation (therefore minimised) :
2008 3.8%
2009 -0.4%
2010 1.6%
If inflation was -0.4% in 2009, how was that not deflation? If you want a better example of how bad deflation can be, look at the first part of the Great Depression.
1929 0.0%
1930 -2.3%
1931 -9.0%
1932 -9.9%
1933 -5.1%
after 1933 it turns positive again for a few years
And btw, there's still some risk in money market securities. We haven't seen a crisis bad enough to really jeopardize the money markets, but it's possible.
It did jeopardize the money markets in 2008 but the government intervenes and guaranteed the funds, they double the bet once again and got lucky, remember?
Yes, that's a better way of putting it. Thank you.

The US has been printing money at an insane rate the past several years, and it's worked so far, but it can't go on forever.
No amount of money printing will be able to save the situation.
YESIf that happens in a disorderly, crisis-like fashion, the whole world is screwed.
Disagree here, most if not all countries will suffer at first but it will be great for hard working countries with natural ressources low taxes and regulation and high saving rate
I suppose it would be possible for such countries to do ok, but there aren't many countries like that (can you think of some examples?), and they would have to be very isolated from the global economy. Usually countries with strong economic growth and a good industrial base (e.g., China) are exporters. If a significant portion of a country's economy depends on demand for their exports, they get screwed during a global crisis because no one has the money to buy their exports anymore.
You say what you think people should do. But I say what actually happens and has happened many times in the past. This may seem counterintuitive and working against logic, but human psychology is not about logic. And it is surely not what you think it should be.
Do you buy less when the price goes down? Give me exemples of when YOU buy less when the price goes down!
This doesn't have to do with desire. This has to do with capability. There were some good price breaks/sales during the 2008 crisis. I would have loved to have taken advantage of them, but I couldn't because I was unemployed for a couple months at the beginning of 2008. As a result, my family and I didn't have extra money to spend on cheaper products. The whole reason they're cheaper in the first place is that fewer people can afford them.