Knowledge: Macarons are baked in very low temperature in the convection oven while the Greeks made breads without yeast in the wood burning oven.

Conversation:
I've always considered becoming a baker because I love baking!
Is that so? So you want to work in a bakery as a baker?
Yes, I think it would be fun! All the pies and cakes and rolls I could make! I love the smell of fresh baking bread!
Cool! Were you aware that control of yeast is a fairly recent practice?
Oh really? Then how was bread baked?

Response: Ah, The Greeks used the wood burning oven to make breads without yeast.