Fun!

I was curious given the cloud discussion - a quick search suggests default AWS SSD bandwidth is 250 MB/s, and you can pay more for 1 GB/s. Similar for s3, one http connection is < 100 MB/s, and you can pay for more parallel connections. So the hot binary quantized search index is doing a lot of work to minimize these both for the initial hot queries and pruning later fetches. Very cool!