So...by "transporter buffer" are we just meaning the computer memory storage?
Apparently not. The transporter buffer keeps a phased version of the transportee in limbo for just a couple of minutes unless something extreme is done (but this extreme stuff works just fine on the 24th century even if it kills 50% of the users in the 23rd). Computer memory in Trek is forever instead - but cannot cope with transporter patterns, heavily suggesting that the patterns themselves contain the bulk of information needed for reconstruction (just like the original, unphased versions contain 100% of it), and there is very little abstract data on top of that.
I always got the impression that the buffer was like a storage area for the deconstructed transportee, prior to them being reconstituted on the platform or being sent to their planetside destination.
Seems so. And generally one can't input or extract piecemeal: what's in the buffer is the whole package, functionally whole so that apparently the heart (or its phased equivalent) keeps beating, say. Or at least the limbs can keep on moving and the lips producing words which the ears then hear.
Sure, you can beam out "energy only", leaving stuff behind. But perhaps this is only survivable if you are an energy-based superbeing to begin with, and know the tricks needed for your mere mortal host to survive the reintegration.
A great way to move bulk, that - if failure in longterm storage is an issue of small mistakes creeping in, then 99.99999999999999999% of a shipment might arrive intact even in bad cases. (Or then what arrives is only 99.99999999999999% right, and will explode on arrival as the result...)
Timo Saloniemi