The guy says roughly<p>&gt;The question I&#x27;m asking is why does a 10 year old computer basically run current software OK while that wasn&#x27;t true in the past.<p>I&#x27;ve got a theory that it&#x27;s a bit related to human brain IO limits. There&#x27;s only so much text, sound and video we can take in, video being the highest bandwidth and computers got to a stage where they could do video OK a decade of so ago. So increasing the output dramatically does not have a huge effect on user experience. I mean 4k video is nice but it&#x27;s a similar experience to 360p.