Thank you for the replies guys.
Looking at some of the replies, perhaps the point that I was making was not what some of the replies understood.
I was not asking whether a certain amount of effort is required to make USD 100k. That effort is required is known.
What I meant to ask was from the perspective of the phrase "it takes money to make money". That was what the question was around. I am looking to know if there are those who started with let us say up to USD 50k or less as the most they could put into their trading, were they able to able to, by putting the effort required, go to the point where they could trade for a living by making "consistently" over USD 100k per annum. That was the intent of the question. Not whether they can do it with no effort or whether they can do a one of trade on a big swing to make $100k on one of the index trades.