There have always been endless debate about whether Feng Shui is scientific or simply superstition. I think this phrase sums it all up:
" For a believer, no amount of evidence is required.
For a non-believer, no amount of evidence is adequate".
Which side of the fence you stand will be dependent on your personal experiences and convictions. Probing deeper, you realised that debate is actually not about whether Feng Shui is science or not but instead rooted in one's prejudice. Faced with a hardcore skeptic, laying out all possible explantions of Feng Shui from a scientific perspective will only get yourself being scoffed at. Period.