Looking at the issue of generating power, there are several choices available, and coal is one of those, but so also is nuclear, wind and solar. They're more expensive, and any tiny amount more expensive than oil means they wont be used right now, but they're not *massively* more expensive, its not like ten times or even a hundred times, it's like, well here is one view of coal vs nuclear which evalutes it as 30 dollars per megawatt hour instead of 29.1
Next, you discussed distribution of power, specifically I felt you feel that using coal to generate power means that it's no longer possible to power machinery on farms, or to power transport.
Even today, we have electric powered:
It seems reasonable to suppose that if we wished to, we could make electrically powered farm machinery too. Sure, there may be issues, like disposing of old batteries, but they are not I feel insurmountable issues, and I feel they are not issues that will push our civilisation back to the dawn of the 1900s are you are proposing...
Yeah, to fix this, edit
vm.mmap_min_addr = 0
with:
vm.mmap_min_addr = 65536
... then run
Some books on the subject:
Yes, and ultimately intelligent computers will actually improve spam detection, since they will be able to analyse, understand, posts sufficiently to check whether they are reasoned posts relevant to the thread, or spam about pharmaceutical enhancements.
We used to use bcc for mass emails, with a note at the bottom to inform users that they had been put in bcc to avoid the problems associated with reply to all.
Pretty simple solution, worked really well, zero additional hardware/software etc required.
Only certain departments (secretary of department heads typically) had the ability to create mass emails, so training was easy.
Are you having fun yet?