''Fungibility: Ordinal numbers reduce the fungibility of Bitcoin, as ordinals
received in a transaction may carry with them some public history.''

As anyone can send anyone else any sats, any reasonable person will assume that
a new owner of a particular sat cannot be understood to be the old owner, or
have any particular relationship with the old owner.

''Congestion: Adoption of ordinal numbers will increase the demand for
transactions, and drive up fees.''

Since Bitcoin requires the development of a robust fee market, this is a strong
positive of the proposal.

''UTXO set bloat: Adoption of ordinal numbers will increase the demand for
entries in the UTXO set, and thus increase the size of the UTXO set, which all
full nodes are required to track.''

The dust limit, which makes outputs with small values difficult to create,
should encourage users to create non-dust outputs, and to clean them up once
they no longer have use for the sats that they contain.

=== Security ===

The public key associated with a sat may change. This requires actively