The very act of noticing that something is a good strategy, and beginning to trade on it, will over time drain away the utility of the strategy, until it is useless or worse than useless.
Tracking indexes is "big", and has some brute simplicity about it, but eventually the market will eliminate that as a viable investment mechanism. (But that won't stop your metaphorical Dad from swearing up and down you need to buy index funds....)
The very act of noticing that something is a good strategy, and beginning to trade on it, will over time drain away the utility of the strategy, until it is useless or worse than useless.
Tracking indexes is "big", and has some brute simplicity about it, but eventually the market will eliminate that as a viable investment mechanism. (But that won't stop your metaphorical Dad from swearing up and down you need to buy index funds....)