Posted: Mar 24, 2021 11:19 pm
by Hermit
Ugh. How many more laps...
Frozenworld wrote:There is some arguments that say that since our brains construct reality based on the input of our senses that this in a sense can support solipsism since we are only seeing a filtered view of reality itself.

Recognising that since our brains construct reality based on the input of our senses does not support solipsism. It supports the argument that we have a filtered view of reality. The two are not the same.

Sure, we can not arrive at objective truth one day. Our knowledge will always be filtered through our senses, but we do have a pretty good reason to know that there is a world outside our minds: the predictive power of our filtered observations. Take Pluto, for instance. When the theory of gravity (which itself was arrived at via observations filtered through our senses) was applied to our planetary system certain discrepancies between along what paths certain planets should be travelling according to the theory of gravity and the paths they actually took were observed in planetary orbits that could only be accounted for by the existence of other - as yet undiscovered - body affecting those paths with its own gravitational force. Astronomers used these observed orbital irregularities to calculate the size and location of the hypothesised bodies and finished up discovering Neptune in 1846. It brought theory and observation closer together, but not entirely. So another existence of another body was stipulated. Calculations on the remaining discrepancy resulted in the discovery of Pluto.

The fact that we could predict Neptune's and Pluto's existence, the paths they took and the mass they contained before we had any direct empirical knowledge of them is a pretty good indication that there is stuff outside our own minds. Generally, the recognition of regular patterns, be they scientific or casually experienced ones, are indications that we are not just imagining a world out there.