GM Secrecy and Metagaming

[ArchonShiva]

Originally Posted by Nymdok

My point as I attempted to illustrate with real world examples is that Animals with similar shape and musculature can have a rather broad range of Basic Move

There are creatures which can be described as "deceptively fast", but I don't think a fantasy ranger in a world full of magic should be expected to fail at guessing a deer's speed - the ranger's trained eye can surely do better than "it's roughly the size of a gazelle, so it must be a gazelle", focusing on the shape of muscles and other stuff.

Of course there are non-natural creatures which don't follow the normal rules, but said ranger lives in a world full of non-natiral creatures, and surely these give clues as well, just clues that we cannot fathom.

GMs can always be as secretive as they want, but -- especially with PCs possessing the right skillset -- there is no reason that they need to.