Science has yet to explain consciousness or ego. Since the supernatural is defined as some force or event that is beyond scientific explanation or the understanding of the laws of nature then wouldn't consciousness, by definition, be supernatural?
Science is the new religion, and IMO its evangelicals are just as bad as the classical religions. I am, by training, a scientist, but I try not to let that get in the way of understanding, if that makes sense.
Ok, perhaps we are just debating semantics, then. You are positing the supernatural to be similar the 'God of the gaps': i.e., whatever we don't know/can't [yet or perhaps ever] measure or explain is ' supernatural, ' which I guess is a workable definition and maybe ego is a good example of it (I don't know the neuro-biology field).
Science has now explained many things historically regarded as supernatural, and it has also opened up new areas of inquiry that could hypothetically be called 'supernatural'. I expect that will continue to perpetuity. Some people posit a deity, higher consciousness, etc, as explaining the stuff in that Gap. Mysteries are fun; humans enjoy contemplating abstract, unknowable, or immeasurable concepts and their effect on ourselves and human society.
I'm a scientist by training as well, I live with a scientist, and I work with scientists every day. Your statement that 'science is the new religion' is pithy, fashionable, and silly. That's like comparing chalk to cheese. There are individual advocates for each that are personally obnoxious, of course, but scientists and their claims are subject to testing, evidence, and disproof. Religious proponents and their claims are not.
As you know given your training (non-scientists frustratingly often don't), the scientific method works by DISPROVING things that are testable, but it does not and cannot claim to PROVE any absolute definitive truth. This is not a bug, it's a feature. Speaking colloquially, scientists will say, "We know such and such... [to be true]" when they are referring to the provisional, 'workable' truth of the objective physical universe that we inhabit, but more typically they hedge their language to "current evidence supports so and so at such and such a level of statistical probability" based on hypotheses that are proposed, repeatedly tested for weakness, strongly supported by evidence, etc. This is why many of them aren't good at communicating with the general public.
Despite its lurching messiness, the scientific method is still the most useful and efficient way that humans, with our limited senses and brains, have found to obtain objective information and continuously expand our knowledge of the physical universe. As with all human endeavors, the field includes egocentric individuals who act like they are the guardians of 'absolute truth about everything.' However, the scientific discipline itself discourages this because a crucial element of the process is the constant attempt to tear down beautiful ideas with hard data. Science cannot, however, investigate in all realms of inquiry or thought. No decently educated, ethical scientist would ever claim it can.
Scientists can correctly state that the existence of god is not now, and possibly not ever, disprovable by science, and so that question is not currently within its purview (though it won't stop many of them from trying to devise tests for god).
Scientists can anticipate eventually being able to address at least some phenomena that currently might be called 'supernatural'. Systems of measurement, tests of disprove etc. might be devised tomorrow, at which point: POOF!, something that was supernatural 5 minutes ago will tomorrow suddenly fall into the realm of 'natural' and explainable.
Scientists can correctly state that objective evidence supports natural explanations for many of the things that believers might reflexively consider 'supernatural' or evidence of god.
In regard to any particular question that science can tackle, scientists must ALWAYS assume the possibility that further evidence or better tests will eventually overturn their current provisional truth (assuming the investigation is far enough along to even posit one). This is the foundation of the scientific discipline and it is the crucial distinction from 'religious seeking'Seeking for, and evangelizing about, religious 'truth' is a completely different endeavor. Claims to absolute truths about supernatural things (and totally ridiculous claims about natural phenomena as well) are regularly made by religious dogma, institutions, and believers. These claims are not subject to disproof or objective evidence (see Sagan's invisible dragon analogy). They are subject to faith, subjective feelings and experience, and arguments from authority.
Chalk to cheese.