Deletion of 512k day

Comment: The mention in the Border_Gateway_Protocol#Routing_table_growth|BGP article Routing Table Growth section is enough. There was some news coverage.  While Notability is not temporary, but this one fails . A thing happened on the internet, they fixed it that day, and it was forgotten. The name was coined by the register and used in a single article and some reddit posts
Stance: delete
Cited policy: Wikipedia:Notability (WP:PERSISTENCE)