Because why don't we listen and just discard all knowledge and rediscover it every day. We don't know the sun will rise tomorrow. Why bother even exchanging knowledge..its all pointless. Might as will sit alone by ourselves and bob our heads up and down.
somebodies in an awefully pessimistic mood.
have you ever benefited from knowledge recieved or knowledge earned? the answer is of course a resounding yes. if it werent so then you would not exist. proof that the exchange of knowledge, the build up of knowledge, is beneficial and worthy of time.
now, about it all being pointless in the end anyways? well, most likely true. however, you havent commited suicide yet, so obviously you do see a "point" in the present, and thus you should see a point in the buildup of knowledge.
again... i dont see how that comment relates to agnosticism nor to i see how agnosticism relates o the original post.. ijm just working with what you give me.