RE: Request for Comments: Proposal for Touch-Based Animation Scrubbing

[Tobie Langel:]
 
> We haven't looked at the proposal deeply enough to see if it a proper fit
> for the use cases we (Facebook) are mostly interested in (momentum and
> infinite scrolling on touch devices), nor whether it is indeed the most
> appropriate solution. However, I would like to react to your statement
> that solving these use cases is not important for the Web and the CSS
> community right now.
> 
> Momentum scrolling is a key part of the user experience on touch devices,
> in both native and web applications. Internal experiments we carried out
> show a direct correlation between smoothness of scrolling and user
> engagement. Not only did users who suffered a degraded scrolling
> experience engage less with the app during the experiment. Once the
> experiment was finished and their scrolling performance re-established, it
> took weeks for them to get back to their initial engagement levels.
> 
[snip]

I strongly agree with you and, I think, Dean, that scrolling is hugely
important for touch users. Though I find the idea intriguing this is the
source of my concern with the proposal: attaching animations to scrolling
is not going to make scrolling smoother at the moment.