English is not as objective as mathematics.
For objectivity, math > English. In math there are right answers and wrong answers that you can't argue with. It's more objective than English. English is much more subjective.
An acceptible answer in one class might be rejected in another.
Tim Duncan is almost as tall as Shaquille O'Neal.
Tim is 7'0" tall, but Shaq is 7'1". Therefore Shaq is taller than Tim.
For height, Tim < Shaq. You can say "almost" because the two statistics, or pieces of information being compared, are really close (only 1 inch off) without being even.
A is as + adjective + as B. Equality--A=B
A is not as + adjective + as B. A<B
A is almost as + adjective + as B. Not quite equal--A<B(just barely)