i wouldnt go for the commodity etfs. They degrade due to roll overs. MOO, XLE, XME look good though. moo and xme look bubbly but bubbles can get bigger.
idea for an etf: BUBL all it does is buy a basket of bubbles.
i do. but java and python are used for different things
pros: compile time checks, static types, threading.
cons: slower to develop in than python. i wouldn't use it for analytics
you can run your data through https://github.com/pandas-profiling/pandas-profiling for quick exploratory results. after that, scikit has more regression implementations. else higher order approximations
agreed. making a game is free other than time. and has a wider audience, more than likely more upside.
I use https://unity.com/ . It is free and simple. You can make games, simulations, targeted whatever
all these higher level languages (and visual drag/drop) actually make things more difficult to do. Without a large community around the language it is useless. There's a reason why everyone chooses the same tools... they work.