Technical vs fundamental

For a technical traders his world is the charts and what he makes of it. If he get entangled with fundamental setups it maybe to his doom. Most fundamental setups takes time to unfold and it may not as well as circumstances changes. With technical charts, we may not why but we know when. To know When is more crucial to the trader than Why. Some fundamental analyst is saying Amazon is overvalued or CBA is above in premium compared to the other 3 banks in Australia. There might be a case to short or hold but when. As a trader I want to know When ?? I don't want my money a day longer than necessary waiting for something that might or not come and takes ages in the mean time.