I have never heard of this expression, 'this follows from~.' Is it grammatically correct? I can't say I rely on the article in Wikipedia.
SMS language is similar to that used by those sending telegraphs that
charged by the word. It seeks to use the fewest number of letters to
produce ultra-concise words and sentiments[2] in dealing with space,
time and cost constraints of text messaging. This follows from how
early SMS permitted only 160 characters and some carriers charge
messages by the number of characters sent.[3]It also shares some of these characteristics with Internet slang and
Telex speak following from how its evolution is rather symbiotic
to the evolution of use of shorthand in Internet chat rooms.
Best Answer
Yes, "this follows from" is both grammatically correct and idiomatic, although the linked ngram suggests that its use peaked in the 1960s. "This follows from" usually means "This came about because of" the preceding conditions in the sentence or paragraph before it.
The second example is a poorly constructed sentence, and "following from how" sounds contrived and awkward to my ear. It might better have been stated as follows: