Description of the need
If a Layout made its contexts available to its custom blocks, this would allow people to use tokens related to the entities in the context. Use case: create a custom block that displays some node properties like the created date, which are otherwise not selectively available.
Currently the layout contexts are not available to BlockText, which is the class that custom blocks use. While BlockText::getContent() does invoke token_replace() it does so without any context, meaning that only global tokens are fulfilled.
Recent comments
Try using caching in the View settings, set to 24 hours. This should work for anonymous site visitors.
View to show a different node each day
That would actually be a nice usability improvement. A lot of people already build search pages with Views, so having an easier way to convert the default search results into a View would make...
[UX] Convert search to a view.
Have you already played with Views random seed? I belief, what you try to achieve would work with that module. Show only one node and set the sort order to "Global: Random seed" with "...
View to show a different node each day