I think so, yes - unless perhaps you "trade" (more likely "invest", but perhaps not necessarily) solely on the basis of fundamentals?
I don't use indicators, myself - but there are certainly people trading broadly the same way as me, who do. I do relatively fast-moving intraday futures trades (not by any means scalping) using my perception of overall trend as a directional bias indication (I know people who use indicators to assess this) and timing my entries according to immediately preceeding price action patterns, my general aim being to enter existing trends during/after retracements - in short, looking for convenient long entries in uptrends and short entries in downtrends. I think the timing/positioning of my entries would be harder to duplicate with indicators - in fact I don't really know of a way to do that.
I'm heavily dependent on assessing areas of support and resistance, but not dependent on indicators at all - and it just suits me.
It's still "past information", though, as I feel you'd rightly say - it's just that the lookback periods (yes, we price action traders use that expression, too) are significantly different for the directional bias from what they are for the entry timing. And one part of that can far more easily be substituted by indicators than the other.
For what it's worth (if anything) ...
%%I think so, yes - unless perhaps you "trade" (more likely "invest", but perhaps not necessarily) solely on the basis of fundamentals?
I don't use indicators, myself - but there are certainly people trading broadly the same way as me, who do. I do relatively fast-moving intraday futures trades (not by any means scalping) using my perception of overall trend as a directional bias indication (I know people who use indicators to assess this) and timing my entries according to immediately preceeding price action patterns, my general aim being to enter existing trends during/after retracements - in short, looking for convenient long entries in uptrends and short entries in downtrends. I think the timing/positioning of my entries would be harder to duplicate with indicators - in fact I don't really know of a way to do that.
I'm heavily dependent on assessing areas of support and resistance, but not dependent on indicators at all - and it just suits me.
It's still "past information", though, as I feel you'd rightly say - it's just that the lookback periods (yes, we price action traders use that expression, too) are significantly different for the directional bias from what they are for the entry timing. And one part of that can far more easily be substituted by indicators than the other.
For what it's worth (if anything) ...




%%I have my opinions about off-the-shelf indicators, but I can't say with certainty they're completely useless. Everyone has to start somewhere, and most useful quantitative models are proprietary for obvious reasons.



Maybe we should get up from a computer desk every now + then even if we '' feel fine!!''Whatever you use to trade execution and money management is key. It kills me when people rag on a particular method they may work for someone else. It's true indicators are a derivative of price and volume but I agree with the OP you even if you don't use them directly if your trading on technicals your input is the current price(the current is part of past once you see it) for example RSI predicts turns but only will work in consolidations with out the RSI you would simply look for the low that held and the high that held and try to fade. I don't use them simply because it didn't fit my personality but I can see some form of these being an input for any algorithm that I write in the future.