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One thing that isn’t clear to me at all, is – what time scales is Edge expected to be suitable for? If I’m a tracking my sensors at home and storing them for a year and then progressively downsampling for successive years (i.e. by no means "Big Data") – is Edge suitable for me or do I need to look for an alternative? I don’t think the blog post explained this well, perhaps exactly because they're knowingly alienating this sort of the user base?

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I think Edge would be suitable for this use case. It's not that longer time period data won't be stored and queryable, it's just that Edge isn't optimized to make that longer period data queryable very fast (because it's not rewriting the files to reorganize them for that). Ultimately, we'll have to test once it's ready.

It sounds like Edge won't do the downsampling so you'd have to code that yourself. Their overall strategy may be "open core in name only"; if they don't promote or explain the open source version at all then it won't threaten sales of the commercial versions.

I expect that one of the use cases for the embedded VM will be to downsample data so I think it's something you could do inside Edge.

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