holy shit. i cant believe so many people actually believe in ghost.

Think again:

Why human resort to scientific methods? because it's widely accepted. It is true (in it's domain of prediction) at all time. Of course anything not proven is by 'pure logic', doesn't give a conclusion. But think of it this way: The existence of ghost is not clearly defined. IE: we always attribute ghost as something 'intelligent' and we always attribute them to stuff that actually break laws of physics (eg: they fly in speed >c! they change from dark matter (we cant see) to normal matter (we can see) in miliseconds! they... (you list it!)) ok so here's the problems:

1. they (assuming existence) live in same universe and hence must obey laws of physics
2. i doubt the existence of laws beyond what we know in macroscopic region
3. i strongly doubt (if exist) that it can be intelligent
4. and omg. wth. whatever.