What's the plural form of hypotheticality? Here's the word you're looking for.
Answer
The noun hypotheticality can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be hypotheticality.
However, in more specific contexts, the plural form can also be hypotheticalities e.g. in reference to various types of hypotheticalities
or a collection of hypotheticalities.