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> Type a letter? Refresh. Scroll? Multiple refresh. Zoom? Multiple refresh. Select a button? Multiple refresh. Press the button?

That's because the damn smooth visual effects. Most of the transitions between these states are animated in a multiple number of frames. There would be no problem if it switched straight to the target state. Also scrolling should be replaced with pagination and zooming should ask you to enter the percentage rather than let you zoom visually.

> As you say, every app and website would need to be completely redesigned to work with e-paper.

I really wish every app to be designed that way anyway - that would mean less of pointless fun but much more of eye and brain comfort.

I don't know if there is a scientific paper on this but it feels like moving stuff depletes brain resources much faster, causing more stress and attention deficit.

The only thing I want displayed is what really needs to be displayed (exactly what I have came to view + some useful auxiliary information perhaps). The only thing to update at any given moment of time is what really needs to be updated.

As for smooth transition visual effects I have always hated them altogether and always disabled them on every PC I used.



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