That depends upon whose thinking we're talking about.
According to the National Science Foundation one in five Americans still believes the sun revolves around the earth. I'd say the speed of thought for many people is so slow it would have the impact of a wet sponge and be harmless.
I suppose your name is Einstein?
I know some other people that this would not hurt them at all. LOL :)
nope , you would pass right through it and then say was that a wall
Luckily I'm a slow thinker so it wouldn't hurt.
Nope. Speaking from experience here.
tell me more please
While thinking, I have run ino many a wall. Surely, I'm not the only one, am I?
If you did it head first, only for a second or so