Of course, ChatGPT still dominates the market by a significant factor, as its daily active users on March 2 were 250.5 million across iOS and Android.
Going through them briefly: this is not a distributed system and it has a very hard limit on scalability or availability. You can deploy a “SpacetimeDB cluster”, meaning a primary instance and several followers with eventually consistent replication (emphasis on eventually consistent; the WAL is eventually consistent, the replication is too, there’s a lot of margin for things to go wrong here), but your whole system is bottlenecked by the CPU and RAM capacity of the machine where your main SpacetimeDB instance is deployed. You need enough CPU for your database to execute all the queries, but also for your whole application to execute all its application logic, as again the application lives inside the database. You need enough RAM to fit all your database’s data in-memory. SpacetimeDB is not disk-backed at all; it just flushes a WAL to disk (and periodically, snapshots that make recovering from the WAL quicker on restarts). If your dataset grows larger than RAM, your database (and your application, which are the same thing) will fail over. The only option for scalability here is vertical: buying a bigger machine to run your database.
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目前，枣子山8栋新建房屋主体结构全部完成，室内和外装饰装修工程基本完工。“老百姓的笑容和大拇指，是对我们最大的肯定、是我们最大的政绩。”吴之凌说，群众之所以点赞，根本的是干部用实干回应了群众期盼，把实事办到了群众的心坎上。
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Lockheed Martin in a statement said it produced a record 600 PAC-3 MSE interceptors for Patriot batteries in all of 2025. Zelenskyy claimed Thursday that Middle Eastern nations expended over 800 such missiles in just three days — more than Ukraine has held in reserve throughout the entire four-year war.
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