Well, when dealing with the market... we aren't dealing with a market.

We are dealing with a few giant traders, who decide to move the market with their movements in and out of stocks, sectors or markets.

So, playing the stock market is figuring out where the whales are going to move.

If we actually had a market, like Veritaseum is working on (block-chain tokenizing of stocks) i don't think we would actually have a market.

Most people i know buy stock (through a mutual fund), and just leave the money there. So, most stocks would only have a small percentage actively trading hands. Maybe even so little that when someone actually wants to sell shares, there is an online auction.

It also seems to be this way in crypto exchanges. Those places that allows futures trading and other leveraging see lots of trading, while places that deal in actual trades (exchanging a crypto for another crypto, like Bitshares and Etherdelta) see very few trades.