How to Find Critical Problems in a Business

In my mmgide sero to salt, which i released a couple o weeks ago, i go through the four stages of a bootstep business. The preparation stage is the problem exploration, invalidation and stability. Then you have a the stage, and then your stability, and after what's growth. But let's just talk about the first stage. It's very important to do problem valudation, which is, i guess, the second step, because you do problem exploration first.