What did Vaihinger mean by his contention that without fictions, societal life would be impossible? Describe the difference between pragmatism and fictionalism. Why is it incorrect to refer to the...

What did Vaihinger mean by his contention that without fictions, societal life would be impossible? Describe the difference between pragmatism and fictionalism.

Why is it incorrect to refer to the material that Ebbinghaus used for his research as “nonsense syllables”?