"Many, many credible people have posted publicly about having experienced a working, delightful Magic Leap demo."
The same could be said for Waterseer yet after years of "research" and "development" all they managed to produce was a rough beta model which was basically the exact same thing as an average water condenser which can already be bought in stores right now.
A more recent example would be Hyperloop, many "credible people" (mostly journalists seem to speak up though) are raving about that and seem quite excited about the current test pipe which is being build right now. Many have made reports about it and seen the pipe from the inside.
However, much to my surprise, no one has ever mentioned the enormous amounts of rust which can be seen inside. If you look at the edges in almost any video shot from the inside the tube you can easily spot that for yourself. How is a rusted up pipe a good thing for a test track? What kind of engineering skills, or lack thereof, does that demonstrate? I mean, it only costed them a million or so....
Solar 'freakin' roadways anyone? Lets make glass roads (that is going to be so much fun in the rain) and place solar panels inside the roads. You know, the area where cars actually pass over and by doing so will block out the sun so prevent the panels from producing any energy at all. That too got massively positive media coverage. Well, as you might know they actually made a test model which was build for real.
Totally invisible during day time, several panels already broke, the whole thing even caught fire once and most of all: it doesn't collect any energy. It's by far capable of even sustaining itself right now.
In this day and age "credible people" means nothing anymore.
In a totally unrelated example: Last week in the Netherlands a company was going to build on a stroke of land and as determined by national law a group of professional archaeologists screened the area and eventually gave the go for construction because there was nothing there. After the 'go' a group of amateur archaeologists set to work and what do you know?
Those "amateurs" found what could very be the greatest archaeological discovery for the Netherlands in a long time. Hundreds of items and several complete ships were restored. Complete, intact, ships.
You can read the full story (Dutch) here.
Had it been for the "professionals" then we would have missed out on an enormous historical treasure.
SO yeah.... credibility really means very little in this day and age. Because people get often credited for who they are, not for what they did or have done.