Question for the battery tech gurus - First, let me just say yes I have a ridiculous daily commute. It's usually 2.5 hours each way by car+train+metro. (5 hr commute per day). I'm looking to move closer eventually, house is going up on market this month, so not looking for comments like 'you should move closer' etc etc. Before I had the MS, I would drive to a train station which was 46 miles away, then train + MTA. 92 mile daily commute. Now that I've had the MS, I've been driving into the city daily. It's 100 mile commute each way, so 200 miles daily commute. Instead of 2.5 hrs, my commute is now 1:30/1:40ish if I leave early enough. Enough to make a difference. That being said, lets go under the assumption the housing market really sucks (not a bad assumption right now, lol) and it takes 3 yrs to sell (as it may take a while in this market to sell my house just assume this commute is 'indefinite' for now,).. I'm wondering what the effects of the battery life would be if I kept doing this. That's basically 4000 miles a month. Plus weekend driving, assuming that I am driving 50000 miles/year. From what I've read from Tesla somewhere (owner's manual?), the battery should lose about 1% per 10000 miles. I guess that's about 2.5 miles range loss per 10000 miles. Does that mean at 100,000 miles we'll lose 25 miles range and our standard charge range will be about 220? Is that accurate? Does this 'level off' at all? - meaning that does the 'degradation rate slow down' or is it a linear/constant loss? So at 300,000 miles (75 miles range loss?) will we have 170 miles range on standard charge? I'm wondering if the degradation rate slows down over time, remain constant, or perhaps even increase? Does anyone know how many miles it would take for 'complete failure' or 'degraded enough to need a replacement'? Sorry - lots of questions. But I'd really like to know the answer to these as it's pretty important to know the actual expected battery life. There are articles I've read online that say things like 'lithium ion EVs will need to have their batteries replaced every 100,000 miles' but is that all just BS? If that's true then I don't want to be looking at replacing the P85 battery every 2 yrs, lol.