I think i can make some money by daytrading BRK-B.
Even if you could, doesn't mean it's anywhere close to a relatively good option for doing so. I'd put it somewhere around the 2nd-percentile of stocks I'd choose for that. Put down the crack pipe.
I tried and lost, you never know if the market will be up or down, the stock could be up $2+ one day and down the same another, I plan to just hold for the long haul