I honestly don't know what Bin Laden's real strategy was. But, if part of his strategy was to provoke the US into responding in ways that would hurt it economically, he certainly did not need to be a genius to come up with that strategy.
All he had to do was notice what had happened to the Soviets, something he appears to have done:
Indeed, bin Laden has spoken of how he used “guerrilla warfare and the war of attrition to fight tyrannical superpowers, as we, alongside the mujahidin, bled Russia for ten years, until it went bankrupt.” He has compared the United States to the Soviet Union on numerous occasions — and these comparisons have been explicitly economic. For example, in October 2004 bin
Laden said that just as the Arab fighters and Afghan mujahidin had destroyed Russia economically,
al Qaeda was now doing the same to the United States, “continuing this policy in bleeding America to the point of bankruptcy.” Similarly, in a September 2007 video message, bin Laden claimed that “thinkers who study events and happenings” were now predicting the American empire’s collapse. He gloated, “The mistakes of Brezhnev are being repeated by Bush.”