[TheRealPomax]

But then you go "hang on, doesn't ESM exist?" and you realize that argument 4 isn't even true. You can literally do what this argument says you can't, by creating a blob instead of "writing a temp file" and then importing that using the same dynamic import we've had available since <checks his watch> 2020.

[dfabulich]

A virtual filesystem makes it possible for the ESM you import to statically import other files in the virtual filesystem, which isn't possible by just dynamically importing a blob. Anything your blob module imports has to be updated to dynamically import its dependencies via blobs.

[apatheticonion]

Correct. Especially painful if you use Worker threads or .node files

[notnullorvoid]

There's also a module expression proposal, that would remove the need to use blob imports.

https://github.com/tc39/proposal-module-expressions