That can depend on the size one is trading. 50 Es contracts scalping 2 points each time and doing that twice in one hour is 10,000.00 in an hour before commission. That is a pretty good hourly rate I’d say. If you made 6 of those trades instead of 2 in a day then that is 30,000 for the day before comm are deducted. Plus if flat by end of day session don’t have to worry about gap down or up openings on the next session.
This is fantasy talk by someone who averages into trades, not someone who "scalps."