When more taproot usecases? Crossinput for example
Cross-input signature aggregation is not a taproot usecase, it is a feature that could be built with Schnorr-style signatures. The Taproot softfork did not include this feature, because research into cross-input signature aggregation was not progressed far enough. Waiting to include it would have delayed the Taproot softfork by years.
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Is it at the point where it's secured to be done now? I'd love to learn more about that
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It’s still a research stage proposal, and implementing it will now require a new type of outputs, so it might get shipped with another proposal that requires new output types at some point
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