Hi folks - pardons if this has been covered before, but -

When you increase the size of your (land-based) trading building, the description says that it increases the number of tradeable goods. Does this mean that it "unlocks" a good not formerly available, which might also be used in your sea trade for better profits?

My understanding of the trade system (including sea trade) is that the game always selects the "single best" routes your city can do, based on how many routes it's capable of, what goods you have, who wants them, who you can trade with, etc. Putting two and two together, it seems possible that the land-based forum might allow some better sea route, if it gives your city a new kind of good to trade by sea or land. But what the forum description might simply mean is that you now have +1 land-based trade routes available (like with port upgrades) - and it doesn't do anything relative to which goods are available from the province.

I recall someone did an in-depth tracking of incomes and found that increasing forum size increased income from neighboring provinces as well. But I can't find that thread now - I wonder if he (or anybody else) knows about this particular issue?