Now you’ll have a number of audiences, and there may be more than one that looks viable. But viable in terms of problem affliction need not mean viable in terms of market.
So in this section you will note various market conditions. For the most part it is standard stuff, market size, growth rate, etc. Some of the information to be obtained is in response to things like CB Insights Top 20, stories on Failory, and a plethora of other places. Some of it is the beginning of a competition audit, something that will need to be done extensively later on. The reason it is not done thoroughly now is because there is no point digging into this spot too much at this moment in time. The competition can influence you too much, and it may somewhat incarcerate you. Be aware of them, but no need to stalk them.
I recommend you go with your target audience if they were the highest or near the highest in terms of problem affliction, or an audience based on your decision. I also recommend you only audit one market.