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"well trodden problem" does not make it any easier.

Scaling is hard. For everyone. Testing that scaling works is harder.

>"well trodden problem" does not make it any easier.

Yes it does.

I have to agree with sterileopinions here. The fact that it's been done multiple times before means you know a lot about how hard it will be, the necessary resources, and can learn from past mistakes.

That doesn't make it easy. But it definitely makes it easier. To say otherwise is to argue that experience isn't useful.

Thank you.

> The fact that it's been done multiple times before means you know a lot about how hard it will be, the necessary resources, and can learn from past mistakes.

"All happy families are alike; each unhappy family is unhappy in its own way." -- Leo Tolstoy, Anna Karenina

It’s an ‘embarrassingly parallel’ problem. They could use a test load of a 1000 accounts, design a service for that, buy a sufficient proxy host and multiply. Scaling is hard when the problem is difficult to scale, browsing and streaming media is not a hard class of problem to scale, unlike an MMO say where real-time content updates occur in intricate patterns of locality and game logic.

Do you have real world experience building out a system of this scale (even with a couple orders of magnitude)?

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