Reading is crucial.
Charlie Munger, a great investor and a very sagacious old guy, said it best:
‘I have said that in my whole life, I have known no wise person, over a broad subject matter who didn’t read all the time — none, zero.
Now I know all kinds of shrewd people who by staying within a narrow area do very well without reading.
But investment is a broad area. So if you think you’re going to be good at it and not read all the time you have a different idea than I do.’”