>the URL transforms into a unique permalink once the answer finishes generating. This is non-obvious, but great! It would be nice to have a share button to cop

>the URL transforms into a unique permalink once the answer finishes generating. This is non-obvious, but great! It would be nice to have a share button to copy the URL. The querystring param cache= makes me think the permalink may not be forever. Do you plan to keep the cache indefinitely?