How do we verify the intent of the change? For example... I say "I changed the tech because I intended for Machinery to be our new tech." Then someone else changes it to Feudalism and says "well I intended the tech to be Feud" how do we determine what is the team's true intent?
I would say we verify the purpose of the temporary tech change, by the actions after the change. If the player who changed the tech immediately changes the tech back before logging out, we know that the purpose of the tech change was to investigate possibilities. If not, then we know that there was some other purpose, which would violate the rule... just my thoughts... Frankly, I don't see any probem with the SANCTA tech-hiding method, other than the fact that other teams were apparently unaware of it and thus were wasting espy points...
Are we saying that teams can't change their mind between turns, or from turn-to-turn, about what they intend to tech? Surely that is not what we want... That's why I think it is better to have a rule about what we can do rather than a rule about what we can intend...