2024年12月20日 星期五 新京报
And over the last two decades, the center of gravity in capital markets has shifted dramatically toward private ownership. BlackRock CEO Larry Fink pointed out in his 2025 annual letter to investors that 81% of U.S. companies with revenue over $100 million are now privately held. The number of publicly traded companies has fallen roughly 50% since the 1990s. We usually blame regulation or quarterly earnings pressure. Those matter. But I think they’re secondary. The deeper issue is that public markets don’t have the machinery to value complex technology companies properly.
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The Apple Watch Sport Band is now available in Bright Guava, Clementine, and Soft Pink, while the Sport Loop adds Bright Guava, Blue Mist, and Cantaloupe to its color lineup.
在本代机身的周边细节和外观上，三星也做了一道艰难的加减法。
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[9] Lillicrap, T. P., et al. (2016). Random synaptic feedback weights support error backpropagation for deep learning. Nature Communications, 7, 13276. (The DeepMind paper proving that the brain could learn using random backward wires via Feedback Alignment).