That is what ‘automation’ often is. You take a working process, then let machines do as many steps in that process as you can. Harvesting crops, sending memos, robots spraypainting car parts, self driving cars (We still have a lot to do there)

Building on that it gets even more interesting as we try to find better, or even completely new processes.

How was this handled in the age of typewriters?

How on earth did English typography get so weird with mdash, ndash, dash, hyphen, etcetera while most of the readers have no clue about the the differences. IMHO, just use dash.

Can you explain me how the different lengths of dash add to the understanding of the text, when I usually don’t even see the difference on my mobile phone screen?

You are wrong, till is perfectly fine – and so is til. See Merriam-Websters article about this, at https://www.merriam-webster.com/grammar/should-you-use-until-or-till-or-til

cheese sandwich

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This week I don’t. Next week you may be right.