Full Idea
Does a relativist have any authority to decide about things which will happen in the future?
Clarification
'Relativists' seem to deny the existence of any fixed truth (leaving only points of view)
Gist of Idea
How can a relativist form opinions about what will happen in the future?
Source
Plato (Theaetetus [c.364 BCE], 178c)
Book Reference
Plato: 'Theaetetus', ed/tr. Waterfield,Robin [Penguin 1987], p.76
A Reaction
Nice question! It seems commonsense that such speculations are possible, but without a concept of truth they are ridiculous.