How will we transition into 4th Density if most of humanity will merge with machines?

[Kaaron]

Nah, autonomous AI is as serious as Frankenstein movies. You sure can program a machine and thats it. A program can have response procedures and can therefore mimic intelligence to a certain degree.
And also, look around - in the scientific circles. Never have science become so limited as it is today. There is a demand for objectivity which means only information validated by machines and apparatuses are taken serious. I would have thought that if something like this were to happen, alchemy had to be reintroduced and cultivated far further to create artificial organic tissue to start experimenting.  
And consequently, this idea doesn't come from scientific circles. They are born and bred in Hollywood and spread by their films. Its the legacy of Science fiction. And those ideas were there already in the 50ies. Isaac Asimov and the law for Robots. This is how far they have come.

If Ra can request that rocks take a certain shape, by communicating with infinite intelligence, I propose that that same intelligence is present in all physical matter.
I'd suggest that mainstream science is limited and the conditions within, are a result of a suppression or controlled release, at best.
I'd say that alchemy and artificial organic tissue, is already a very real thing.
Just because we are being fed certain ideas of what is possible, doesn't mean it's not known about and already a reality.