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Use "impossibilities" in a sentence
"On what basis do we distinguish the paradigm shift required to redefine FTL, time travel or alternative realities as possibilities rather than impossibilities from a similar paradigm shift that would redefine, for example, ESP, jaunting or intersecting realities as possibilities rather than impossibilities?"
"Deus non jubet impossibilia, sed jubendo monet et facere quod possis et petere quod non possis -- God does not enjoin impossibilities, but by his commands admonishes us to do what is in our power and to pray for what is not."
"What are level two and three impossibilities, so-called impossibilities?"