"Move handles not blobs. Don’t move big chunks of data through your system. It eats bandwidth and causes performance problems for every service that has to touch the data. Instead, store the data and refer to it with a handle."
"Since saving storage and computation is saving money, in 2015 Twitter saved $6 million by introducing the 20 day TTL."
(via : https://dooby.fr/links/?LnzUkw