不过客观地说，我们没有过分乐观的理由。
But objectively, there isn't overwhelming reason for optimism.
说实话，尽管过分乐观的非商业的开源模式仅仅是过去。
Honestly, though, the starry-eyed Open Source non-business model is just about a thing of the past.
甚至过去十年公布的预测也已经证明是过分乐观的。
Even forecasts published over the past decade have proved wildly optimistic.
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