The possibility of unperceived existence
Can something exist without being perceived? - eg."Sound is only
sound if a person hears it"
The most immediate philosophical topic that the riddle introduces,
involves the existence of the tree (and its sound) outside of human
perception. If no one is around to see, hear, touch or smell the
tree, how could its existence occur? What is it to say that it
exists when such an existence avoids all knowing? George Berkeley
in the 18th century developed subjective idealism, a metaphysical
theory to respond to these questions, coined famously as "to be is
to be perceived". Today metaphysicians are split. According to
substance theory, a substance is distinct from its properties.
According to bundle theory, an object is merely its sense
data.
source:wikipedia
so if a man shouts in a forest but no one hears, he doesnt shout?
