Again in my mind that's what the skill contest is about. I don't see the difference in saying dudes got eyes so refined he can see and someone snuck up on him and tremorsense so refined he can use it as sight and someone snuck up on him.
The difference, as I see it, is that tremorsense isn't blocked by intervening objects so there is really no way to hide from it. It just spots anything moving on the ground.
On the other hand, it has the weakness that it's really hard to spot characters standing still, and automatically fails against a levitating or flying character.
But can they be distinguished from a thrown pebble?
I don't see how it could possibly not be - the vibrations would be
totally different. Even with just human hearing, could you mistake the sound of a pebble hitting rock for the sound of a footstep?
You need to have a base movement of 158ft/round to hit the current marathon record,
Yeah, the overland travel speeds should maybe be increased a bit.
Even so, though, current marathon record is a lot more friendly terrain and less weight of gear than I think the overland travel rules assume.
Plus, marathoners at that level are trained for something highly specific, so in a D&D world would probably have some class that gives fast movement plus the Mobile feat.
I disagree. The pace is about right for me walking carrying a backpack. I think it would probably impact the accuracy of shooting with a longbow, and it's much too low for charging an opponent.
Well, I think that's a matter of level of abstraction. People only have two speeds - normal and dash (without something like the rogue's Cunning Action). Within those limits, I think it's
about right.
And yeah hiding as a bonus action can be powerful but there are some hard limits on stealth, especially once combat is rolling. And spellcasters might have access to improved invisibility which is pretty much the same thing in most cases. Why is that okay along with the stupid huge laundry list of abilities they get but a rogue sneaking is now broken?
Yeah, looking at that again, the limits there are stronger than we were playing it. (And I wasn't saying that it's broken -- I don't think it is, especially in the rules as written -- just that interpreting Stealth super-favorably can make it
really powerful.)
But rogues get hide-as-a-bonus-action at 2nd level instead of 7th, and greater invisibility is a concentration spell.