You enter a broad topic or niche ('sneakers' or 'design tools'), and this tool will give you 1,000-ish *semantically unique* topics--neatly organized into topics (categories) and sub-topics (silos).
This is an amazing tool! If you have a website or blog or want to start a new site, this is for you. It literally takes only a few minutes to use but will save you HOURS of time and best part is it takes all the guesswork out of how to structure your site, keyword research, what to post, etc. It's a no-brainer IMHO.
