Bloom filters are awesomely nerdy stuff.  But seriously, blog with no comments section?  D&#x27;oh.<p>Would have liked to ask how do you decide how long to &quot;teach&quot; so that you don&#x27;t degrade your filter?  And also when speaking about efficiency the blog post totally omits the overhead cost of &quot;teaching&quot; (or &quot;warming up&quot; if you have cache mindset).