Given the number of traders who fail, beating a buy and hold strategy might be a place to start.
I'm sure there are traders who manage to achieve a 50 to 100% returns. And there are hockey players who can play in the NHL, but buying a pair of skates and a hockey stick won't get you the big bucks.
Granted you might make a few percentage points in a couple days, however you are going to have a loss or two of the same magnitude every so often.
Kudos to the traders who are making a living trading a small account. I'm not one of them. I day traded for a few years and found I make the same returns swing trading. Stress level is reduced, and I have time for other things in my life.
That may be a good point. It's odd because to me the stress of it is like my therapy. I guess you could say it's more like a game of Chess. I found it fascinating almost to the point if an obsession. I think you may be right on using beating an index fund as a minimum.
There are over 2000 futures day trading rooms and all claim to be successful, to increase your financial wealth, make you financially independent,, etc. and yet none can define or measure such success. So how about this: the median salary in the US is ~$50K per year. If you were to day trade 50 weeks per year, then you would need to earn $1000/wk or $200 per day take home after $5 round trip per contact to earn the median US salary. Would that work?
It's odd isn't it? I've searched for the answer to this question on several occasions across search engines and never found even close to an answer. I always assumed there was one, but either I was asking it wrong so I got poor search results or it was such an obscure answer Google couldn't find it. I guess the truth if it is an answer may not exist yet. I would say it may lie somewhere in the root of both you and Deaddogs answers though.