In conclusion: 1  Consider water from any source as contaminated with disease causing organisms. 2  By far the best way to treat water is by boiling it. 3  You only have to bring the water to a boil.  Donât waste fuel; there is no need to boil water for 10-minutes, 5-minutes, or even 1-minute.
Razor (philosophy) In philosophy, a razor is a principle or rule of thumb that allows one to eliminate (shave off) unlikely explanations for a phenomenon. Razors include: Occam's razor: When faced with competing hypotheses, select the one that makes the fewest assumptions. Do not multiply entities without necessity.
I. Definition. Occamâs Razor (or Ockhamâs Razor, also known as the Principle of Parsimony) is the idea that more straightforward explanations are, in general, better. That is, if you have two possible theories that fit all available evidence, the best theory is the one with fewer moving parts.