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I can't see YOU! Do you exist?
The tides still work during cloudy days.
Quote from: sophiecentaur on 05/07/2007 23:21:22I can't see YOU! Do you exist?Yes, because it's YOU that don't really exist! 
A solipsist would have argued all along that we can only believe something to exist, we cannot know it exists - so maybe nothing exists at all. Maybe nobody and nothing exists, except as my imagination, and thus if I do not imagine it, then it does not even exist there?
You are getting hung up on this prersonification of the "observation" that creates reality. The fact that water is moving on the surface of the earth is in the quantum sense as much an "observation" of the existence of the moon as a gravitiating object as two lovers going gaga in the moonlight ie the "observers" do not need to be a sentient lifeform.
Quote from: Soul Surfer on 06/07/2007 23:46:02You are getting hung up on this prersonification of the "observation" that creates reality. The fact that water is moving on the surface of the earth is in the quantum sense as much an "observation" of the existence of the moon as a gravitiating object as two lovers going gaga in the moonlight ie the "observers" do not need to be a sentient lifeform.But what does it mean to suggest that the observers do not need to be sentient?Yes, you can say that the tides are an observer of the moon, but would the tides themselves actually exist if no human observes them? If, because no human observes the tides, so we cannot show the tides exist, then how can we say that the tides observe the moon? It is quite reasonable to say that a human need not directly observe something; but if a human plays no part (even an indirect part) in the observation, then does not the whole chain of observation fall down?Ultimately, the observation is not even something that must be human (for there is no difference in principle between another human being or a cat), but ultimately it must be our own personal observation that must be the ultimate terminal point in the series of observations.
The fossil record shows that tides existed long before there were human or even animal "observers" on this planet.
The fossil records would still be there whether or not we or anything else read them.The universe is a causal place where things happen and this affects how other things happen so almost everything that happens leaves some sort of record however faint. Ok the record is often ovewritten by further things happening.I find it very difficult to imagine any event that leaves no trace of it actually happening.
The fossil records would still be there whether or not we or anything else read them.
The universe is a causal place
No you are wrong. The equations of existence of a wave or particle in quantum mechanics describe the probability of finding that particle at any point at any time.
The precise mathematical equation for the existence of a wave/particle in quantum mechanics and those of imprecision in uncertainty has a value that decreases exponentially towards zero as you move a long distance away from the object. This may become very small indeed but however far away you go it never actually reaches zero. So any particle has a finite but extremely small probability of being found in any part of the universe at any time. This mathematical fact in quantum electrodynamics has been proved to the most amazing precision.
The relativity of simultaneity is the concept that simultaneity is not absolute, but dependent on the position of an observer. That is, according to the special theory of relativity formulated by Albert Einstein in 1905, it is impossible to say in an absolute sense whether two events occur at the same time if those events are separated in space. Where the event occurs in a single place—for example, in a car crash —all observers wherever they are can agree that one car crashed with the other at the same time. But where the events are separated in space, such as one car crashing in America and another in Australia, the question of whether such events are simultaneous is relative; some may calculate the two accidents as happening "at the same time" and others, looking at the events from a different position, will calculate the American crash as occurring first, and still others can calculate the Australian crash as occurring first. Einstein's special theory demonstrates that there are occasions when there is no "correct" answer, where no observer has a privileged status, and all the observers can claim to be "correct" even if their calculations are incompatible with each other.