You're fucking retarded. Like literally potato tier, giant thumb looking genuine retard. Filters can only filter out matter larger than the holes in the filter material. This means the majority of commercially available filters will get rid of 99.9% of bacteria, protozoa, etc but most of them do NOT filter out chemicals, metals or minerals. Want to test the theory? The chemicals present in most sodas that are responsible for flavoring the soda are smaller than a single micron, so you can pour a soda through a filter or suck it through a lifestraw and guess what? It's going to be clear, flat, slightly weaker tasting soda. It doesn't become water because a lot of the CHEMICALS in the soda are too small. Some brewers use some of the smallest sterile filters when racking their beer/mead/wine because it's faster than siphoning and speeds up the time in which their brew gains clarity and doesn't look cloudy from the yeast. If filters were to filter out ALL chemicals, then all they'd have in the end is water, which is not the case. I think it's lazy and does weaken the flavor a little so I let time clear my brew, but it's still some pretty solid proof that you're fucking wrong.