It's a shame that the paper doesn't reference Steve Ditko or Stan Lee or Peter Parker. It's only fair to acknowledge prior art.

> Spiders don’t actually shoot their silk into the air. They make contact with a surface first, attach a strand, then pull and arrange their webs with careful choreography.

Spiders don't shoot their silk into the air when spinning a web. Some spiders, however, migrate by ballooning: they stand upside down, rear ends (and spinnerets) in the air, and send a thread of silk skyward, where it catches the wind or heat currents and lifts the spider toward parts unknown.