Exsanguination occur. However, the animal's inverted position allows blood to flow more precipitously and thus makes an animal regaining consciousness before it is fully exsanguinated highly unlikely. In any case, animal welfare advisory councils clearly emphasize that the time from incapacitation to start of exsanguination should be prompt; recommending a time under 15 seconds. Beyond the initial cost of purchasing a captive bolt, continued usage of the method is very inexpensive. The animal is incapacitated for the duration of the procedure, so it is one of the safest methods for the slaughterer. Slaughter by exsanguination is mandated by Judaic kashrut (kosher)
What Is History? looks at general theories, history only covers the unique aspects of history and is selective. Second reason, it cannot teach lessons which later on in this chapter he contradicts himself. Third objection, that historians are selective and their work may contain biases. Fourth objection that it cannot predict the future and final objection is that history is embedded in religion and biases. In his reasonings he clearly contradicts himself several times in what defines science and history. He was strongly against historians only using the empirical method to analyze the facts of history and felt there needed to be less