I’m sick of this nonsense, and we’re going to get down to brass tacks, sir. My 2011 Macbook Air died a number of weeks back in the center of a writing job with an August deadline, and expending a fortune, throwing away means, and getting to learn a new OS just prior to my deadline was not heading to get the job done. We didn't realise how obnoxious we were, we ended up just having enjoyment.