I cannot agree with your comment. I think there is no need to do market research before investing.
Can you just hear yourself here, you just said you cant do a market research and saying this is even a probability because you're not sure as you still mentioned that you think, which is a perception and not what you're convinced about, or maybe you don't read what you have typed for the second time to know maybe you're still on point or not, irrespective of our market option, trading strategy or investment plan we are going for, we need to make research on the market before going into it.
When you do research to invest. Then if the market does not come in your favor then you will wait to invest. This is not the right method of investing. It seems that you do not have proper knowledge about the DCA method. If you were aware of how the purchase is made through the DCA method then maybe you would not have thought of doing market research before investing.
The market research he is referring is for us to know if the entry point we are taking is good enough as at that particular time base on what we are going for, including the pattern we are using, no one will invest without first researching about the market to know where we are and what to be expected before they can invest, same also we do when we want to sell, we try and search for a best selling period for our coins.