As traders, people who buy and sell on a "signal", what value do we bring to the sharemarket, or indeed society? We are not investors by our own admission. We often don't lend our capital for more than a few days at a time, or weeks at most. Then we pull our capital out and move it on to the next 'signal'.
Someone once told me that be bring liquidity. Is that value enough, or are we more parasitic than we realise?