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[185.70.43.23]) by gmr-mx.google.com with ESMTPS id k8-20020a5d6d48000000b0033cddf15870si301117wri.6.2024.04.01.06.38.07 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Apr 2024 06:38:07 -0700 (PDT) Received-SPF: pass (google.com: domain of bitcoin-dev@wuille.net designates 185.70.43.23 as permitted sender) client-ip=185.70.43.23; Date: Mon, 01 Apr 2024 13:37:59 +0000 To: Jameson Lopp From: Pieter Wuille Cc: Peter Todd , Nagaev Boris , bitcoindev@googlegroups.com Subject: Re: [bitcoindev] The Future of Bitcoin Testnet Message-ID: In-Reply-To: References: Feedback-ID: 19463299:user:proton MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Original-Sender: bitcoin-dev@wuille.net X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass header.i=@wuille.net header.s=protonmail3 header.b=EUVRq3SN; spf=pass (google.com: domain of bitcoin-dev@wuille.net designates 185.70.43.23 as permitted sender) smtp.mailfrom=bitcoin-dev@wuille.net; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=wuille.net Precedence: list Mailing-list: list bitcoindev@googlegroups.com; contact bitcoindev+owners@googlegroups.com List-ID: X-Google-Group-Id: 786775582512 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-Spam-Score: -0.8 (/) On Monday, April 1st, 2024 at 8:54 AM, Jameson Lopp wrote: > It sounds like folks think testnet is useful enough to continue maintaini= ng. > I think it's a fair point that testnet should strive to be as similar to = mainnet as possible. If we fix the difficulty reset edge case then that wil= l arguably make testnet EVEN MORE like mainnet by removing the "block storm= " phenomenon. Agreed on both points. Signet is useful, but it is probably not the right s= olution for everything. And testnet has been reset before, it shouldn't be = a big deal to reset it again. > Changing the supply schedule is an interesting proposal, though I'd count= er that fixing the difficulty reset will naturally make the supply schedule= more evenly distributed over time, plus we can hopefully move toward reset= ting the network before long. I'd be slightly worried about changing consen= sus rules on testnet that deviate significantly from mainnet because I bet = there are plenty of systems running that validate that rule or make assumpt= ions that it's the same as mainnet, and deploying such a change could cause= far more grief for the developer ecosystem. I think there is an easier alternative to changing the supply rule: the int= ention to reset it again when its subsidy drops too low. That may even also= counteract the development of a non-zero market price for the coins. As for using other measures to prevent too large difficulty variations... I= 'm not sure that's desirable, because it always cuts both ways (nicely demo= nstrated by the "allow difficulty 1 rule" on testnet3 backfiring and enabli= ng block storms!). For applications that actually need very predictable blo= ck rate, there is signet. For others, just the normal mainnet rules are pro= bably not too terrible. I would be ok with having a somewhat reduced block = interval (say a few days instead of 2 weeks) if that's not deemed to comple= x to implement across the ecosystem, but I don't think it's that important. --=20 Pieter --=20 You received this message because you are subscribed to the Google Groups "= Bitcoin Development Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to bitcoindev+unsubscribe@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/= bitcoindev/wKrcm6SEjcG_7UmxByP-rDDVajB7-oYJRF9p_BjLe5XVzxVV9nCB8RsTAXcD5vF_= rWxUmLK4HOM7zV7U4-kZSUO9Ccj4jEehsbbb7FD45GQ%3D%40wuille.net.