You're right, Datasette isn't the right tool for sharing billion point datasets (actually low-billions might be OK if each row is small enough).

I think of Datasette as a tool for working with "small data" - where I define small data as data that will fit on a USB stick, or on my phone.

My iPhone has a TB of storage these days, so small data can get you a very long way!

Using it for unstructured image and video would work fine using the pattern where those binary files live somewhere like S3 and the Datasette instance exposes URLs to them. I should find somewhere in the documentation to talk about that.

But yes, I should probably take "of any size" off the homepage, it does give a misleading impression.