How convincing is Nyāya-Vaiśeṣika’s analysis of reality as an ontology of seven ‘categories of things that exist’?

You can choose any of the below How convincing is Nyāya-Vaiśeṣika’s analysis of reality as an ontology of seven ‘categories of things that exist’ (padārthas)? [Feel free to address what you wish of this theory, e.g. their theory of substances and qualities/actions, their theory of universals and particularities, their theory of the relation of inherence … Read more