Scatter
The poem's letters (or words) are scattered in 3D, and fall into place as the pointer passes. The far keyframes use scatter, so each piece rests somewhere different. A redraw listener also blurs each piece by how far it is from where it belongs, using getNodeIndexData() and distanceFromIndex().
This one is decorative: the poem can't be read until the pointer gathers it. Screen readers read it as normal.
’Twas brillig, and the slithy toves
Did gyre and gimble in the wabe:
All mimsy were the borogoves,
And the mome raths outgrabe.