It doesn't appear to care about viewing, only preserving. Viewing would be a separate job and probably more than one right answer about how it should be done.

It doesn't appear to care about viewing, only preserving. Viewing would be a separate job and probably more than one right answer about how it should be done. Ie, just replay the transactions verbatim or try to translate or substitute some parts to adapt to the current context, etc. Well "don't care" is wrong. The entire format is designed to be readable and decipherable even if it's 200 years in the future and you have no idea what the file is and are starting from scratch looking at it. They obviously care a great deal. In that sense, yes you can look at it on a phone, since you can look at it in any text editor. And that is not some pedantic useless statement but an explicit design goal. But interpreting it in any facier way like replaying the transactions and rendering the original browser view, but on some other browser with a different physical screen size and different browser features and limitations and plugins and scripting languages enabled/disabled/versions and security settings etc etc etc... That is really an entirely different job and no single right way to do it, so there will need to be many different viewer apps that all make different choices to attain different results from the same raw source data.