So

So, starting a sentence with a “so” is the same as starting it with “therefore”, except because it is not following any information it is reduced to a “so”.

Therefore, a “so” is a lesser, sneakier form of “therefore” and arguably should be outlawed because it is an inference that is implied but not justified.

Article 12:89(a): A sentence shall not begin with “so” unless the immediately preceding text establishes a proposition from which the new sentence reasonably follows. If there is no preceding text, either in written or verbal form, the use of “so” shall carry a maximum penalty of banishment to the USA for the term of their natural life.