Quote:
Originally Posted by TomCowley
In one respect, it's reasonable- roughly, for something to be understood as a description, somebody needs to understand it as a description. Or just that an observation requires a perspective. That's fine. It ventures into nonsense though when you consider it as the basis for an ontology. People can and do conceive of many things, some of which they later decide don't exist (aether), some of which they learn never could have existed (a largest prime), and it becomes impossible to talk about existence in any reasonable way that remotely corresponds to the current usage of "exist", even for not-intentionally-obnxious things.
If through understanding of non-immediate causes and effects, you hypothesize the existence of the aether, and it turns out that your understanding was wrong, this does not conflict with his metaphysics. Although understanding is universal this does not mean that we are impervious to wrongly attributing causes with effects. This is because he's not denying that the objective exists. Merely that it exists through and for the understanding. For example, he considers time as - succession - a necessity of the principle of sufficient reason: as existing for it and through it (the principle of sufficient reason is synonymous with 'understanding').
I see what you're saying though...if our understanding can extend to all the causes and effects in the universe and thus be responsible for their existence, why is some understanding wrong?
To this he may also respond by appealing to the distinction between reason and understanding. It is reason that is responsible for hypotheses such as - the aether - and not 'understanding'. For this he provides many examples of how the greatest breakthroughs in science and philosophy have all come through 'immediate comprehension or understanding of particular causes leading to particular effects or vice versa'. He emphasises the immideacy of it, and denies that long and laborious use of reason is necessary to an understanding of the universe, although many adopt this strategy and although this strategy may help a little. E.g. the immideacy of understanding in newtons apple moment and Einsteins train watching moment (this one isn't in his book obv.).