What kinds of thoughts drive the science community? Certain ideas may lead researchers astray, others lead to new insights. Roger Penrose does an entertaining and educating lecture.
Experts are everywhere. An expert is considered to be an authority of wisdom and knowledge. This is why the consulting impostor business works. However, science cannot tell people what they want to hear. Science can only tell what things are alike, whether the answer is satisfying or not. Whenever you see or hear an expert, e.g. on television, remember this: