Ask HN: Who do you like to listen to speaking passionately about technology?

This is something of a random question, but I figure this is the right audience to ask.

Today I was watching some Neil deGrasse Tyson videos on YouTube and found myself deeply engaged by his speaking style, passion, and enthusiasm for the cosmos.

I found myself wondering who in the tech world might be an analogue to NdT.

Is there anyone out there you think speaks particularly passionately about technology, who you love listening to?