And, at the same time, Brazil has undergone a big economic crisis, which has had a downward effect on real estate prices expressed in reais, which has compounded with the drop of the reais against the dollar.

When they pull back, the effect will be compounded due to the sheer size of their appetites and the hole they can leave in your business or market when the buy-side turns off.

This probably was also compounded with decreasing real estate values in general. 

Compound interest is the 6th wonder of the world.

If you're contributing to your current employer's 401k plan - and they are matching those contributions - you'll be losing out on the compounded value of that free money. 

Its the growth.The RE growth is compounded with leverage.  80% LTV with modest 4% property appreciation (which is low for San Fran) is 20% return from the property appreciation. 

When I started there, it was practically same work but with a few more zeros Then I expanded to Puerto Rico for tax reductions that boosted my net profits to insane compounding returns 2) what to do:I started building credit and flipping properties (both residential and commercial).

4: Any money you withdraw is money that is not working for you, not compounding and at the end of the day you are really short changing yourself. 

I have a nice stock that has give me a 45% annual return (about 24% compounded) over the last 7 years or so.

All that money and compounded gains can be withdrawn without taxes after 59.5.