3D Master
Rear Admiral
Timo said:
He was turned into an actual solid, not assume a solid form.
Is there a difference?
Yes.
When Odo plays rock, he becomes rock for all practical purposes; he tells as much in "The Search" and "Homefront". When he plays humanoid, he cheats because the task is complex and he is young and inexperienced. But if forced to play humanoid with the sort of accuracy that adult Changelings can achieve, he would no doubt have a digestive tract, a pair of lungs, and all the other trappings of a regular humanoid.
Odo is not a 100% rock when he turns into a rock. If he was, he would never be able to turn back into a changeling. A rock after all, cannot change shape and turn into jelly. Nor would Odo be able to perceive anything as a rock, he wouldn't be able to tell that he was a rock or anything else one way or the other; because a rock has no eyes, no ears, no brain, etc.
A changeling cannot remain solid indefinitely; it will die.
Where is this established?
A Changeling child will get uncomfortable if it cannot regenerate often (Odo began with 16 hours in early S1, then went to 18 hours; he may have started out with 2 hours or something). Some Romulans believed once that they could kill a Changeling by forcing it to remain in one shape for a long time; they never achieved that effect. And we have seen Changelings die for assorted reasons, but failing to shapeshift was never really explicated as one of them.
Actually, we HAVE seen that effect. Odo was falling apart and was about to die when he couldn't change into a jelly. The only reason he didn't, was because Garak shut the thing off.
...liquid, the founders would have NO way to convey what they want, they're liquid.
They could always make waves.
Oh, right. A wave... "Establish a beach head at coordinates and attack that planet."
That's right up there with:
Bark. "What Lassie? Petey is trapped in a well two miles south to south west from here? And we need a rope at least 3 meters long? And Einstein is right, time is relative? We'll get on it!"