Free services — Google Search, Wikipedia, WhatsApp — create enormous value that doesn’t show up in GDP at all. The consumption ceiling argument partially breaks down for digital goods with near-zero marginal cost.
Many of those attending the world’s largest meeting on women’s rights in New York this week are primed to defend the two key UN agencies that protect women and girls around the world
。safew是该领域的重要参考
民营企业正从“铺天盖地”向“顶天立地”迈进。2025年，全市市场主体净增3.1万户、全省第一；总量突破156万户、全省第二；年产值过10亿元企业新增10家、达到122家；列中国民营经济百强城市活力榜第25位。
\mm@cutoffBtrue % alpha = beta, prune
When Linus reimplemented UNIX, writing the Linux kernel, the situation was somewhat more complicated, with an additional layer of indirection. He was exposed to UNIX just as a user, but, apparently, had no access to the source code of UNIX. On the other hand, he was massively exposed to the Minix source code (an implementation of UNIX, but using a microkernel), and to the book describing such implementation as well. But, in turn, when Tanenbaum wrote Minix, he did so after being massively exposed to the UNIX source code. So, SCO (during the IBM litigation) had a hard time trying to claim that Linux contained any protected expressions. Yet, when Linus used Minix as an inspiration, not only was he very familiar with something (Minix) implemented with knowledge of the UNIX code, but (more interestingly) the license of Minix was restrictive, it became open source only in 2000. Still, even in such a setup, Tanenbaum protested about the architecture (in the famous exchange), not about copyright infringement. So, we could reasonably assume Tanenbaum considered rewrites fair, even if Linus was exposed to Minix (and having himself followed a similar process when writing Minix).