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最早的时候,谷歌搜索的网址是挂在斯坦福大学的网站上的。谷歌的创始人拉里·佩奇和谢尔盖·布林在1997年发表的论文中说:

“我们认为由广告商来赞助搜索引擎,将会使得搜索引擎的返回结果受到广告商的需求的影响,从而偏离真正的用户需求。广告越多,搜索引擎的搜索质量就越差。正因为广告商的存在会极大影响搜索引擎的质量,我们相信我们的社会需要一个搜索质量优秀、排序公正透明、由学术界监督的搜索引擎。” source



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最早的时候,谷歌搜索的网址是挂在斯坦福大学的网站上的。谷歌的创始人拉里·佩奇和谢尔盖·布林在1997年发表的论文中说:

“我们认为由广告商来赞助搜索引擎,将会使得搜索引擎的返回结果受到广告商的需求的影响,从而偏离真正的用户需求。广告越多,搜索引擎的搜索质量就越差。正因为广告商的存在会极大影响搜索引擎的质量,我们相信我们的社会需要一个搜索质量优秀、排序公正透明、由学术界监督的搜索引擎。” source

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Most people buy Bitcoin via exchanges, such as Coinbase. Exchanges allow you to buy, sell and hold cryptocurrency, and setting up an account is similar to opening a brokerage account—you’ll need to verify your identity and provide some kind of funding source, such as a bank account or debit card. Major exchanges include Coinbase, Kraken, and Gemini. You can also buy Bitcoin at a broker like Robinhood. Regardless of where you buy your Bitcoin, you’ll need a digital wallet in which to store it. This might be what’s called a hot wallet or a cold wallet. A hot wallet (also called an online wallet) is stored by an exchange or a provider in the cloud. Providers of online wallets include Exodus, Electrum and Mycelium. A cold wallet (or mobile wallet) is an offline device used to store Bitcoin and is not connected to the Internet. Some mobile wallet options include Trezor and Ledger.

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Like a stock, you can buy and hold Bitcoin as an investment. You can even now do so in special retirement accounts called Bitcoin IRAs. No matter where you choose to hold your Bitcoin, people’s philosophies on how to invest it vary: Some buy and hold long term, some buy and aim to sell after a price rally, and others bet on its price decreasing. Bitcoin’s price over time has experienced big price swings, going as low as $5,165 and as high as $28,990 in 2020 alone. “I think in some places, people might be using Bitcoin to pay for things, but the truth is that it’s an asset that looks like it’s going to be increasing in value relatively quickly for some time,” Marquez says. “So why would you sell something that’s going to be worth so much more next year than it is today? The majority of people that hold it are long-term investors.”

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