Q: if I were asked to invest 10k in one sector, then where?

#1) US market has strong long term trend. Wait for the right moment, but that moment may be the depth of recession. I may not have the conviction. Still US is by far the most likely target of a $10k investment. There are many choices on FSM.

China? not 10k. Perhaps 2->3-5k

Healthcare?
Tech?
Property?
Emerging markets? Nah…I don’t really understand any of them well.