My suegro asked me how to say "y si sí?" in English. The phrase has been everywhere this World Cup. It captures a specific mood, the tentative hope of what if we actually pull this off.
I told him the closest English is "what if?" but it does not carry the same feeling. In English, "what if?" usually opens a longer sentence. It is a bit more cautionary than hopeful.
Y si sí stands alone. It is a complete thought. A hope that has not been announced yet, a possibility that is not quite ready to be a prediction.
Then Mexico won last night. Balconies opened, flags came out, the streets filled with honking and shouting "Viva México."
"Y si sí?" is starting to feel less like a question.