[ehutch79]

It's a print format. They're meant to replicate the printed output.

Sometimes I wonder how in touch Nielsen is with the real world.

[Gordonjcp]

Jakob Nielsen has never been in touch with the real world.

For someone who talks about accessibility and usability, his personal website was always an absolute shitemare to read.

[ehutch79]

Printing to letter size paper is also not the only output.

Where I work we routinely send PDFs to print houses. They're large format, as in paper size. Honestly I can't imagine sending an html/css bundle to a factory. How would you even specify different varnish layers, or embossed areas?

[tacostakohashi]

Exactly! They alternative is a piece of paper, not "web standards".