Premise: well oh i agree

Hypothesis: I think so too.
Answer: yes

Premise: Nowhere is that more clear than in the periodic appearance of what I call the Left-Behind White.

Hypothesis: It's clear that the rare appearance is what's called the Left-Behind White.
Answer: no

Premise: This east-coast Corinthian settlement, founded in 734 b.c. , was the most powerful of Magna Graecia's overseas colonies and, under Dionysius (405 367 b.c. ), a direct rival to Athens.

Hypothesis: This east-coast Corinthian Settlement was the least powerful of Magna Graecia's colonies.
Answer: no

Premise: There's not exactly a shortage of them.

Hypothesis: There is a shortage.
Answer: no