On Wed, Jul 22, 2015 at 4:34 PM, Tier Nolan via bitcoin-dev < bitcoin-dev@lists.linuxfoundation.org> wrote:
> It also requires most clients to be updated to support the new address > system. That's the killer: introducing Yet Another Type of Bitcoin Address takes a very long time and requires a lot of people to change their code. At least, that was the lesson learned when we introduced P2SH addresses. I think it's just not worth it for a very modest space savings (10 bytes, when scriptSig+scriptPubKey is about 120 bytes), especially with the extreme decrease in security (going from 2^160 to 2^80 to brute-force). -- -- Gavin Andresen
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