I am a millionaire in 3 different currencies.

The currency became so devalued that there was an expression at the time that it "wasn't worth a continental"!

If only I had done more USA investing when the pound was two to one (I mention this because currency and tax have started to become as critical to my decisions as other factors).if you want exposure to Europe it's probably easier via equities or currencies unless you are keen to learn all the intricacies of the local markets.

I don't say that US will ultimately crash and burn but unless we take some serious (unpopular) measures in reverting this situation I don't see how we will survive the ultimate catalyst - the moment when US $ is not the world reserve currency anymore, as @Eric Bilderback pointed out. 

If homes, go up 5% but the currency is devalued 10% the property is relatively cheaper.

I know, it sounds like it's about payment terms but honestly, I don't think any of us thought people would think there is any other method of currency.

If this is your next question for the next 10 years,you would be probably lazy guy :)- In real estate, you could prosper in last 20 years becoz of the cheap money policy only, once that's gone, once US Dollar no longer the currency of the world, you need to work, much much much harder, without college degree , outside US-sphere, nobody even look at your resume because the assumption is, no college=lazy guy LOL

Currencies have come and gone but empires have been transferred and sustained on land and real estate. 

Domestically deflating in the median incomes vs inflating currency and cost of good's, making people with less and less affordability even though the numbers keep getting bigger and bigger. 

They were valid US currency.