### Comment:
It’s popular because of the clickbait summary. The brazilian markets are still nothing when it comes to volume for the US. Also the average income is a lot lower in Brazil so $54/day is probably good living

### REPLY:
So are you going to say the Brazilian markets are so different, that if it was possible to get the same dataset from US markets, that day traders would perform better? If so, how much better, and why? How exactly would an increase in volume result in better performance for day traders?   
  
  
 I feel like you need really good answers to those questions before you can write off the basic conclusion of this paper - which is that day trading is a dumb idea.

### END.