(assuming 5e or newer) You can’t true polymorph into Tiamat. The ‘aspect of Tiamat’ from Fizban’s is already CR 30, Tiamat herself is unstatted but obviously more powerful.

As a player character, you can only True Polymorph to a creature of CR 20 or lower

totally unrelated time in the screenshot, I’m sure

I use https://owlbear.rodeo/ for that. It allows you to cast your map to a 2nd screen in player mode, while you can still see the full picture. It has ‘fog’ to hide areas from the players and supports zooming in on each screen separately, or you can sync zoom&view (manually or continuously) from your dm screen

No. Read this.

Dune.

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.

I was part of a gaming club in Europe from 1983. I learned to play D&D basically just like Dragonlance depicted when it was published in 1984. So, for us, it was more of a reinforcement than a revolution.

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?

The description of room K3 gives some clues; it describes the different bridges as “the 50-foot-high bridge” and “the 30-foot-high bridge”.