how long is long

.. to a person waiting for a train late for work, 10 minutes is long,

.. to a person so hungry queuing at a fast food restaurant counter, 10 men is long,

.. to a person stuck in a 3 kilometers jam, it's long,

.. to a person long jumping in an Olympic game, 9 meters is too long,

.. to a person reading a 2 page mumbling, it is too long

.. to a programmer, 2 mins compiling is long,

.. to a Chinese, black person's is long,

.. any person longing, anything is long,

.. it is very long.. answer me.. even if it is a no.