[emmender1]

by definition, any public predictable signals (sustained edge) in stock price time series have been exploited already - thereby nullifying them.

[chronic7490]

> by definition, any public predictable signals (sustained edge) in stock price time series have been exploited already - thereby nullifying them.

Completely false.

In reality, there are more public signals than can be exploited.

The market is most definitely NOT efficient.