I'm being neither pedantic nor cynical. Do you need a refresher on value proposition vs actual outcomes on the last few decades of breathlessly hyped tech bubbl

I'm being neither pedantic nor cynical. Do you need a refresher on value proposition vs actual outcomes on the last few decades of breathlessly hyped tech bubbles? Executive summary: the portions of tech industry that attract the most investment consistently produce the worst outcomes, the more cash the shittier the result. It's also worth noting that "value" is defined as anything you can manipulate someone to pay for.