Spoopy timing.
https://www.express.co.uk/news/science/1131938/NASA-meteor-Australia-fireball-meteorite-nuclear-bomb-Adelaide
We are entering the Taurid swarm. Mostly pebbles, some larger, may have contained the Tungduska object. Keep in mind this is our closest approach to this swarm since the seventies and summin 20m in size just smashed the skies above Melbourne.
Think probability distribution function.
If we just entered it, we are closest approach in a while, and a 20m object just came UNDETECTED, nothing can stop this, anything in this swarm is fully undetectable amongst the cloud and unstoppable. Amateur astronomers would not see it, perhaps NASA 'might'.
There are a set of 100m+ objects in this swarm by probability alone.
We are just entering this swarm right now.
Pic related from Space Weather
We are just entering this swarm.
It could be hiding objects.
Normally we can see 20m objects we know are approaching.
The swarm acts as a fog.
We are on closest approach.
We could stop this fog if we tried.
Did we try previously and made it worse?
A 20 metre object just hit Australia.
No one saw it coming.
Think fog.
The Storm is Upon Us.