I'm scratching my head over the advertised 2-4 week delivery window. Production rates are around 1K/day, right? With the US tax credit about to half again fairly soon and prices are about to go up 3% within days (except for $35K) demand seems like it ought to be very strong, possibly resulting in people who want their cars before the US fed tax break halves missing out. Yet somehow, even with shipping cars overseas, Tesla only has a backlog of 2-4 weeks? That's only 14K to 28K Model 3s. Doesn't that sound like a demand problem? Maybe I'm missing something, but when Tesla had many months of backlog, I wasn't concerned. I realize Tesla still has the lease lever, and increasing international demand, but it doesn't seem like 10K/week is a necessary target. What minimum rate does Tesla need to maintain on the line in order to keep efficiencies high enough to allow the $35K or $37K car to still be profitable.