As an experienced trader in FX and us stocks, and as a bit of a budding technologist, how can I best get into speculating Ethereum?

I've tried getting into ethereum, and am super interested in programming numerous smart contracts, but have showed up late to the party, so all the docs are in varying levels of accuracy (out of date) and it seems like i have to download a million and a half heavy applications just to participate. Red flag. It seems weird that company with so much interest and participation doesn't have proper documentation.

Is there a way to go short; are there options markets; is it currently possible to bet against the price of a smart-contract like Bancor?