| http://www.w3.org/ns/prov#value | - You can not see a black hole, but you can see the light being absorbed around it...there are a lot of things we can not see, and actually, you can see evolution with life forms that reproduce many times within our lifespan, for example, bacteria, viruses, although I hesitate to call them life forms, and even pests that eventually become immune to bugspray.
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