Full Idea
It is fair to ask: if spacetime is a substance, what is the substance in question?
Gist of Idea
If spacetime is substantial, what is the substance?
Source
J Ladyman / D Ross (Every Thing Must Go [2007], 3.2)
Book Reference
Ladyman,J/Ross,D: 'Every Thing Must Go' [OUP 2007], p.142
A Reaction
Personally I love the question 'If it exists, what is it made of?', though physicists seem to think that this reveals a gormless misunderstanding. To my question Keith Hossack retorted 'What are the atoms made of?'
Related Idea
Idea 14937 That the universe must be 'made of' something is just obsolete physics [Ladyman/Ross]