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I like serverless. I know that cloud providers can run my code and auto scale it however is needed. I don't want to worry about how that actually works. I don't want to auto scale servers or think about RAM, etc.

I also like cloud services like Timescale. I just want a database of a certain size. How it runs? I don't care at all as long as it works.

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> I don't want to worry about how that actually works.

The problem is that while you don't want to know you end-up having to. As soon as you hit the limitations you have to workaround it. As soon as what you are doing becomes expensive for reasons you ignored before, you have to go back and rewrite. The only thing is that because it's a Blackbox, you also have to guess and poke it until it does the thing you want.

A fun gotcha like this is that if you write to an S3 bucket fast enough, they auto-upgrade you to a more powerful set of servers... but this incurs a short outage. Unfortunately, this outage will happen exactly when you don't want it to: when the system is busy with a high write volume!

You just have to "know" that these things happen, and because it's all serverless, it's essentially invisible and out of your control.

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