Where do you put 40 TB of images that browsers fetch directly?

Why this is the answer

S3 is the fit whenever the data is whole files read over HTTP and the volume is open-ended: capacity is not something you provision, and objects can be served publicly or through CloudFront without a server in front. EBS volumes attach to one instance and must be sized in advance, EFS is for applications that need a POSIX file system rather than for public delivery, and instance store disks vanish with the instance.