SN-10209 附来源、原文与上下文。
引用的来信Mike Hearn来源 ↗开源。
Open source.
很好。一旦你的代码展示出如何把它简化下来，其他作者就能跟随你的做法。相比完整实现，客户端的挑战没那么吓人。如果更多开发者力所能及，他们就会做出更精致的界面，以及其他我没想到的东西。我预计，原始软件会成为 GPU 矿场和矿池服务器所使用的那套老工业软件。
Perfect. Once your code shows how to simplify it down, other authors can follow your lead. Client is a less daunting challenge than full implementation. If it's within reach of more developers, they'll come up with more polished UI and other things I didn't think of. I expect the original software will become the industrial old thing used by GPU farms and pool servers.
顺便说一下，以后客户端版本可以加入一个很好的功能：把私钥加密保存，每次发送时都要输入密码。
BTW, later a good feature for a client version is to keep your private keys encrypted and you give your password each time you send.
引用的来信Mike Hearn来源 ↗几天前，我已经用自己的应用在测试网上花出了第一笔币，希望这个周末又有机会推进。顺利的话，大概 2 月某个时候就有东西可以公开展示了，但愿如此。
I managed to spend my first coins on the testnet with my app a few days ago, hopefully will get another chance to make progress this weekend. Probably will have something to show publically sometime in Feb, touch wood.
很好，有进展随时告诉我。
Great, keep me updated.
引用的来信Mike Hearn来源 ↗引用的中本聪旧文中本聪来源 ↗我希望选一个数，如果它非常流行，不会显得太少；如果没那么流行，也不会显得太多。
I wanted something that would be not too low if it was very popular and not too high if it wasn't.
很想看看具体的计算过程。从某种意义上说，币的数量是任意的，因为用纳币表示时，发行量巨大得实际上近乎无限。
It'd be interesting to see the working for this. In some sense the number of coins is arbitrary as the nanocoin representation means the issuance is so huge it's practically infinite.
算下来恰好是每个区块 10 分钟： 21000000 / (50 BTC * 24hrs * 365days * 4years * 2) = 5.99 blocks/hour
It works out to an even 10 minutes per block: 21000000 / (50 BTC * 24hrs * 365days * 4years * 2) = 5.99 blocks/hour
我把它略作调整，定为每年 364.58333 天。从 50 BTC 减半到 25 BTC，发生在 210000 个区块之后，也就是约 3.9954 年；反正这本来就是难度调整机制尽力实现的近似值。
I fudged it to 364.58333 days/year. The halving of 50 BTC to 25 BTC is after 210000 blocks or around 3.9954 years, which is approximate anyway based on the retargeting mechanism's best effort.
我考虑过 100 BTC 和 4200 万，但觉得 4200 万似乎太多。
I thought about 100 BTC and 42 million, but 42 million seemed high.
我希望常见金额落在人们熟悉的范围内。如果动不动就用 100000 个单位，就不会让人觉得稀缺。大脑更擅长处理 0.01 到 1000 之间的数字。
I wanted typical amounts to be in a familiar range. If you're tossing around 100000 units, it doesn't feel scarce. The brain is better able to work with numbers from 0.01 to 1000.
如果它发展得特别大，小数点可以移动两位，让“分”成为新的币。
If it gets really big, the decimal can move two places and cents become the new coins.
