I've been reading a lot about wood movement and considerations to keep in mind about it but,,,, I have questions.
Movement seems to be caused by varying moisture content in the wood itself. Moisture seems to be received through the end grain for the most part and expelled throughout. Am I right so far?
If I am right then, wouldn't a sealer or some sort of "building" finish eliminate this problem? If moisture has no way in, the movement would be stopped, IMO.
Can anyone help me wrap my head around this?