AI has had 60 years or more, depending on when you start counting, with (the price-performance cognate of) Moore's law running through that time: the progress we've seen reflects both hardware and software innovation. Hardware progress probably slows dramatically this century, although neuroscience knowledge should get better.
Looking at a lot of software improvement curves for specific domains (games, speech, vision, navigation) big innovations don't seem to be coming much faster than they used to, and trend projection suggests decades to reach human performance on many tasks which seem far from AGI-complete. Technologies like solar panels or electric vehicles can take many decades to become useful enough to compete with rivals.
Intermediate AI progress has fallen short of Kurzweilian predictions, although it's still decent. Among AI people AGI before the middle of the century is a view seen mainly in groups selected for AGI enthusiasm, like the folk at the AGI conference, but less so among the broader AI community. And there's Robin's progress metric (although it still hasn't been done for other fields, especially the ones making the most progress).
Are we halfway there, assuming we can manage to keep up this much progress (when progress in many other technological fields is slowing)?
Intelligence enhancement for researchers, uploads, and other boosts could help a lot, but IA will probably be a long time coming (biology is slow: FDA for drugs, maturation for genetic engineering) and uploads are very demanding of hardware technology and require much better brain models (correlated with AI difficulty).
I didn't say 87 years, but closer to 87 than 32 (or 16, for Kurzweil's prediction of a Turing-Test passing AI).
BTW regarding Robin's AI progress metric, my reaction is more like Doug's (the first / most upvoted comment).
Kim Suozzi was a neuroscience student with brain cancer who wanted to be cryonically preserved but lacked the funds. She appealed to reddit and a foundation was set up, called the Society for Venturism. Enough money was raised, and when she died on the January 17th, she was preserved by Alcor.
I wasn't sure if I should post about this, but I was glad to see that enough money was raised and it was discussed on LessWrong here, here, and here.
Source
Edit: It looks like Alcor actually worked with her to lower the costs, and waived some of the fees.
Edit 2: The Society for Venturism has been around for a while, and wasn't set up just for her.