I guess an old post from my blog is relevant (I think it was already submitted to HN a long time ago): http://www.mostlymaths.net/2010/03/8-reasons-for-re-inven

I guess an old post from my blog is relevant (I think it was already submitted to HN a long time ago): http://www.mostlymaths.net/2010/03/8-reasons-for-re-inventing-wheel-as.html http://www.mostlymaths.net/2010/03/8-reasons-for-re-inventin...