Ask HN: What are best technology demos you have ever seen?

[misiax]

A great technology demo can be a fantastic way to probe product-market fit, even before anything is actually built.

What early stage demos can you recall which made a strong impression and convinced you to learn more about the incoming product?

[austin-cheney]

Mother of all demos by Doug Englebart - https://en.m.wikipedia.org/wiki/The_Mother_of_All_Demos

[shoo]

the twilio demo gets mentioned now and again -- although that's demoing tech that exists, not before anything is built.

new york tech meetup, 2010: https://www.youtube.com/watch?v=-VuXIgp9S7o

previously: https://news.ycombinator.com/item?id=11985368

[akasakahakada]

Boston Dynamics' youtube channel?