0

This question already has an answer here:

I ask this because it seems more efficient to send change to the original address instead of a new one. Does the cryptography not allow this?

marked as duplicate by Nate Eldredge, Andrew Chow, MeshCollider, alcio, MCCCS Oct 23 '17 at 17:13

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

1

Can bitcoins be moved from the origin address to the origin address?

Yes. There are no restrictions. (In fact there is no "addresses" in bitcoin protocol)

it seems more efficient to send change to the original address

Why do you think that it can be more efficient? In fact it is not.

Does the cryptography not allow this?

This is not related to cryptography at all.

Not the answer you're looking for? Browse other questions tagged or ask your own question.