"James Heaton" wrote

Traditionally it's the difference between:

a. a statement of (expected) fact: eg "you will read this post"; and
b. an order or command: eg "you shall read this post" [often with an
explicit or implicit "or else"]


Like the English tourist who fell into Loch Ness, and shouted 'I will
drown and no one shall save me'

So they left him to get on with it...


Nope, has to be the Thames or rather the Isis unless all his auditors were
Oxfordian too.

The Scots never observed the rule.


--
Mike D