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This was explained here: https://vizworld.com/2009/04/what-led-to-the-fall-of-sgi-chapter-1/ https://vizworld.com/2009/04/what-led-to-the-fall-of-sgi-cha... https://vizworld.com/2009/04/what-led-to-the-fall-of-sgi-chapter-2/ https://vizworld.com/2009/04/what-led-to-the-fall-of-sgi-cha... https://vizworld.com/2009/04/what-led-to-the-fall-of-sgi-chapter-3/ https://vizworld.com/2009/04/what-led-to-the-fall-of-sgi-cha... https://vizworld.com/2009/04/what-led-to-the-fall-of-sgi-chapter-4/ https://vizworld.com/2009/04/what-led-to-the-fall-of-sgi-cha... https://vizworld.com/2009/04/what-led-to-the-fall-of-sgi-chapter-5/ https://vizworld.com/2009/04/what-led-to-the-fall-of-sgi-cha... https://vizworld.com/2009/05/what-led-to-the-fall-of-sgi-epilogue/ https://vizworld.com/2009/05/what-led-to-the-fall-of-sgi-epi...