Is there a reason why you can't find another provider? Maybe there isn't one you can switch to in a month and a half, but big bang price increases with little notice doesn't bode well for your future with Rackspace.
Best,
Unfortunately, fewer and fewer hosting companies provide their own email services; over the past years most of them have migrated to 3rd party services like Microsoft's Exchange Online or Google's business email, both of which charge significantly more per mailbox.
When Godaddy did that a few years ago I looked at a lot of places, and the best option I came across was OpenSRS/Tucows, who has been around since 1999. they still only charged $0.50/month per mailbox or so. Only caveat is that they don't sell directly to end users, but provide services to 3rd party resellers. However, anyone can sign up for a reseller account.
Part of signing up as a reseller is paying $100, but that then gives you $100 credit for services in your account. At just $0.50/month per mailbox, that will last a long
time. You do have the option to turn off your public reseller/online ordering portal and just use it for personal/friend/family.
Apple rewrote its OS as a layer on top of Linux maybe 25 years ago.
To clarify, OS X was descended from NeXTSTEP, which was built on Mach and BSD.
Imagine driving off the lot with a new EV, and swapping your brand-new battery for some *used one*, from god-knows-where, when that battery is half the value of the entire vehicle. No, thanks.
This is the kind of thing that makes zero sense for regular consumers (for exactly the reason you mention), but it could be a great system for companies that operate a large number of cars internally, e.g. UPS/FedEx/USPS, or even car rental places, where a returning electric car can be ready for re-deployment in far less time than it would take to re-charge them the conventional way.
At least fleet cars would keep re-using their own batteries instead of receiving someone else's potential garbage.
Its chicken and egg. There won't be suppliers if there are no buyers.
It is not clear there will be suppliers even if there are buyers. Storing energy by making hydrogen is grossly inefficient.
Inefficient, but not necessarily a non-starter. Keep in mind that the more solar gets added to the electric network, there very well can be an excess of power at times. Excess power is starting to become a problem in the European grids these days. However, when there is more power than demand, you can divert that excess electricity to create hydrogen basically for free. The hydrogen can be stored and turned back into electricity later, e.g. at night when solar production is nil.
To the systems programmer, users and applications serve only to provide a test load.