[Feature request] Embedding blocks from other pages

[agentydragon]

Background
One very useful feature in Roam Research is that you can embed blocks from one page in another page, or in another block. You can for example do something like:

• Assumptions:
  • Socrates is a man
  • All men are mortal
• Rules:
  • If P(X) for all X having Q(X), and Q(a), then P(a)
• Deductions:
  • Socrates is mortal
• Applying ((If P(X) for all X having Q(X), and Q(a), then P(a))) to ((Socrates is a man)) and ((All men are mortal)), we get ((Socrates is mortal))

For blocks, Roam also tracks where they are referenced.

Implementation idea
I think to implement this, it would be good to switch from storing the Slate pages directly as JSON (in a custom property) to creating a custom schema and storing them as entities.

So, for example, from this Turtle:

@prefix : <#>.
@prefix voc: <https://face.baby/vocab#>.

:concept
    voc:noteBody
        """[{"children":[{"text":"Hello World!"}]},{"children":[{"text":"Reference to "},{"type":"concept","children":[{"text":"[[Testing Concept 2]]"}],"name":"Testing Concept 2"},{"text":""}]}]""".

To this Turtle (based on https://ontola.io/blog/ordered-data-in-rdf/):

@prefix : <#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix voc: <https://face.baby/vocab#>.

:concept voc:noteBody :noteBody .
:noteBody rdf:_1 :block51451 .
:noteBody rdf:_2 :block54342 .
:noteBody rdf:_3 :block94329 .

:block51451 voc:blockType voc:Text ;
  voc:blockText "Hello World!" .

:block54342 voc:blockType voc:Text ;
  voc:blockText "Reference to " .

:block94329 voc:blockType voc:ConceptBlock ;
  voc:blockText "[[Testing Concept 2]]" ;
  voc:conceptName "Testing Concept 2" .

With this representation, you could have a note embed another note's block by just adding a triple linking to it.