Most startup advice comes from people who haven't shipped anything in years. They recycle playbooks from pure-SaaS worlds that don't map to hardware cycles, BOM economics, certification timelines, integrator channels, or deeptech fundraising.
If you're building a physical product that sells to businesses — sensors, devices, industrial platforms, smart infrastructure — most of that advice is noise.
I'm not an ex-founder. I'm a currently-shipping founder who advises on the side because I find it useful and fun. My advice is calibrated to what's actually working this quarter, not what worked in 2019.