Originally posted by Paterfamilias
What I'm saying to you is that the system we have would not function without day traders. You haven't given me scrap one of evidence to the contrary however.
It is one thing to say that the system would not function exactly the same without day-trading---or that it might not function initially as efficiently with an end to day-trading, which I would tend to agree with, and it is another thing entirely to say that they system would not function at all without day-trading.
I contend that if day-trading were to be eliminated, the markets would survive and adapt, just as markets have always done assuming there are natural supply and demand forces at work in that market. Who knows, they might even become more efficient with the elimination of day-traders.
To this point, I don't see that you given any argument even by analogy or similar conditions that the system would not function without day-trading.
So far I have not heard an argument from you at all, only an opinion---not fact, which you are of course entitled to express.
The difference between an opinion and argument is an opinion is a statement without supporting evidence or argument to back it up when questioned by someone with a differing opinion.
So you have your opinion, based on who knows what, and I have my opinion based on the arguments and reasons put forth to support my point of view.
Since we are both speculating on what would happen without day-traders in our market, there can be no conclusive argument put forth, only an argument versus an opinion, or argument versus argument, and if there are multiple arguments available, that argument which makes the most amount of sense given all that we know about financial markets, as well as other markets that mirror the financial market's behavior, that augument that the majority of reasonable people will choose to accept as the most plausible theory is considered prevailing opinion.
This doesn't mean the prevailing opinion/argument is correct, it is just what is accepted as most reasonable by the majority until proven differently, or until a more reasonable opinion/argument comes along.