On Tue, Mar 7, 2017 at 5:55 PM, bfd--- via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:

> Having a commitment to a "balance" of an "address" (I assume you mean
> P2SH/P2PKH script) is extremely expensive to create and validate, does
> not scale and is not a particularly useful thing for a client to use.
>

The benefit of this sort of infrequent utxo commitment is that it would
allow a new client to download just the contents of the utxo set and not
have to get the entire blockchain history, which is much larger.