Blockchain technology was originally invented in 1991 by two mathematicians, Stuart Haber and W. Scot Stornetta. They first proposed the system to ensure that timestamps could not be tampered with.
总结回望2025年的育儿时光，只能说感慨万千。都说「不养儿，不知父母恩」，其实自己生了孩子到现在才觉得，「养」比「生」难的多。
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In just one year, the Trump administration’s highly visible crusade against immigration has brought new entries into the U.S. to a grinding halt. The demographic consequences are already starting to show up in economic data, and could soon worsen the increasingly dire state of the nation’s $38.8 trillion (and growing) national debt.
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