Yes, yes, they do observe evidence, and no it doesn't.<quoted text>
How have machines demonstrated that life springs from dead matter, or that extrasensory abilities are hallucinatory?
What evidence? For the past quarter of a century, mathematicians have indulged in a carnival of speculation because they don't have to concern themselves with experimental science or direct observation.
Where science fears to tread of course - the non-physical universe which science claims doesn't exist.
The brain centers active when "ESP" is supposedly in use are those responsible for dreams, therefore, they are hallucinations until proven otherwise. Yes, machines helped us to see that.
Not how life "springs" into existence, but so far there is very promising tests showing how primitive cells can be the result of chemical reactions at the most probable time of the event.
Science makes not such thing of anything not existing, it requires evidence, and scientific people have a reliable requirement for such evidence. Until evidence suggests something exists, then it is perfectly reasonable to state it probably does not exist, and that's all scientists do, they say "it probably doesn't exist."
You still lack evidence, where is your evidence? You deflect the burden of proof in every post, so present your evidence so we can examine it.