> That’s when reality hit me: only one person signed up for the newsletter. Just one. It was a painful but clear signal—I hadn’t validated the idea properly.
I'm always confused by the industry and people at large about validation and "failure". What failed? Is it the idea or the execution or the end product or? I see so many inaccurate "experiments" deemed as failures when it's not the same thing.
> I envisioned a platform that would aggregate this information and generate useful analytics and summaries for teams.
Some form of this is a "success". There's been at least a few companies that have raised funding (and/or still making lots of $$$) in this area. So did the idea / the problem you see "fail" or something else? Why does it have to be an outright failure? Perhaps a different form of it would work for example. Maybe the newsletter is the issue. Who knows?
> Lesson learned: don’t just assume a problem exists—make sure people actually care about solving it before you build.
The original problem mentioned, maybe not in those exact words do exist. It's not just an assumption.