If you are not copying or moving the original data, how does the feature store respond to queries?

When Molecula ingests data it splits the features and the feature map apart, but, crucially, it has both of them, so it can respond to queries while also being able to recreate the original data set from the information that Molecula stores.

If the feature map is either kept out of the feature store  and/ or if the feature map is de-identified, then there are essentially no values stored in the feature store. Because you aren’t making a direct copy of the data nor are you transferring it over the network, you are representing it in the best possible format for analysis and compliance.