Kant stated that the universe is ultimately unknowable and
that phenomena are only true from certain points of view as they depend on
perspective.
He went on to divide the truth into two categories:
A priori truths (Before Experience): These are true by
definition. For example, “all triangles have three sides”, “All bachelors are
unmarried men”. One does not need any experience or to conduct any extensive
research to know that they are positive.
A posteriori truths (After Experience): These are only true
after experience and observation. For example, “The Sun will rise tomorrow”.
The difference between the two truths is that the former is
known for certain, and the latter is only believed to be true. We have no idea
if the sun will actually rise tomorrow, but most of us would probably bet on
it. We also know that the world is
round, but yet we cannot claim it as a universal truth as our perception of the
world may not mirror its noumenal form (its actual form, existing beyond human
perception).
So if there is a noumenal form of every single object how
can we be sure that we perceive the world as it actually is? Then surely, only an unperceived object is in
fact “pure”. This links back to Plato’s
forms- in which he argued that forms exist beyond and regardless of human
perception. The universe just seems to then be made of “things” that exist
regardless of whether or not we as humans are there. If this is the case, the tree WOULD still make
a sound if it fell in the woods.
I suppose in a sense, as clichéd as it sounds, to perceive is
to exist, as existence is a necessary precondition of perception. Like Descartes said, “Cogito
ergo sum” (I think therefore I am). The only thing that can be questioned
therefore is the existence of everything and everyone else. Solipsists go a step
further and believe that they are the only entity in existence and everyone else
is a dream figure conjured up by their mind.
Having said this, scientists managed to prove
the existence of objects that cannot be seen. An example of this being Einstein’s
research into black holes, through which he proved that something without a
physical presence, can and does exist. Perhaps God is like a black hole.
This put forward a new age of scientific
experimentation in which all variables are taken into account and research is
relentless, so much so that all axioms are deemed as “temporary”. This came about as a result of Francis Bacon
who questioned axioms that have been followed blindly for centuries, and
knowledge acquired through deduction. This of course means that any knowledge we
have is in fact void as further experimentation could prove it wrong. If following this thought, the Vienna Circle
(a group of philosophers in 1922) who stated that the way to the truth is
through science and not through philosophy are pretty much invalid in their
statement. Once again, the existence of an objective truth and reality has been
called into question.
This brings us to the verification principle
which states that “a statement or question only has meaning if there is
some way to determine if the statement is true, or what the answer to the
question is.” Popper suggested that
since the verification principle itself cannot be verified we cannot hold it as
a truth. So, we’re essentially back to square one, with no idea whether an
objective truth exist. The only things that can be trusted are facts but facts
themselves get tainted when perceived by humans. So, although an objective
reality does exist, as humans we mar it with our personal experiences and
opinions.
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