system
Given the following post, respond as if you're commenting on Reddit:
human
How does a spider sling its web over large distances?

Just sittin in my garden and saw an impressive spiders web.

How do spiders get the first / top bit of their web across two things? Right now this web is between two rose bushes that are over 2 metres apart, how did the spider sling it across that gap without getting tangled in either bush?
gpt
A spider relies on the wind to carry the filaments across wide intervals. Spiders that build the familiar orb-shaped web usually start with a single superstrength strand called a bridge thread or bridge line. The spider then lets gravity the strand blow in the prevailing wind, a process called kiting or ballooning. If the strand does not make contact with something and attach to it, the spider may gobble up the strand and recycle its proteins, then try again. If the gap is bridged, the spider reinforces the strand and uses it to start the web.