Yes, what you're seeing above and below is all one swarm of flies. This is what the end of days looks like.
According to the uploader, this driver in Poland was heading home down a country road and came across a huge swarm of mayflies that will haunt your dreams. Apparently there 'were so many that they flew into the car through the vents' and had to be cleaned out of the car when he returned home. We're never going outdoors again.