" As for predicting, it's impossible "
Every trade you do is a prediction so maybe not so impossible hey ? Re currency , its all hedgeable but needs to be done proactively . Personally i follow Robert Rennie from Westpac on AUD cheap/expensive/middle range valuations . His track record is good and worth following .
" When someone tells you it can't be done.
It's more a reflection of their limitations , not yours . "