Just a question:

This is exactly what i would expect from anyone claiming to be a UX "expert" - they should be able to show me new UX models that I, as a non-expert - would not have thought of.

In this particular case - the fluidity of the background transitions along with the data changes was fantastic - and I tried it in reverse to mae sure it worked both directions.

The execution, I expect from a developer implementing the vision of the UX expert.

Am I wrong? Can you explain?

(An aside: This is the type of "UX Expert" Quora really needs. The UX on Quora is so horrible, it was 30% of the reason I quit using it)

Yep, that struck me to. A lot of previous long scroll examples have been "sexy" but lacked fluidity.

I'm not a massive fan of long scroll in most cases; but it has it's occasional uses, and this was a brilliant implementation.

I was impressed at how well it worked when I opened it on my Z10. Very well done implementation.

What's your impression of the Z10?

Fluid?? Are you joking? Try it on Android (Nexus 7 / JB) Urgh...

I tried it on a bunch of Android devices and the only one that worked well enough to be usable was my Asus Transformer.

Many Android devices lack hardware rendering, I meant fluid on quality software. iOS devise, Chrome. Etc.

Try to scroll with your mouse wheel. It still sucks. It's only good with a touchpad.