Electronic product development. Apple releases a iPhone every year, so people think you can start developing a new phone in September and ship 100M of them the following September.

Really became a problem with Kickstarter reporting where some bullshit project would ask for a puny $50k to develop and ship a tiny wrist mounted supercomputer phone and promise to ship in six months, and tech blogs would eat that shit up without an ounce of skepticism.

I even wrote a blog about it