Figure 2 The abstraction hierarchy of knowledge. Knowledge has a limited duration in time. (The world is not flat any longer).
From Christiansson, P, "The Formalization process in Global Knowledge Handling". Research Directions for Artificial Intelligence in Design. (eds) J.S. Gero and F. Sudweeks. Key Centre of Design Computing, University of Sydney.(the Fourth Workshop on Research Directions for Artificial Intelligence in Design. University of Twente. Enschede, The Netherlands. January 6 1995). (pp 23-34).(Invited position paper)
Olny srmat poelpe can raed tihs.
I cdnuolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdanieg. The phaonmneal pweor of the hmuan mnid, aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoatnt tihng is taht the frist and lsat ltteer be in the rghit pclae. The rset can be a taotl mses and you can sitll raed it wouthit a porbelm.. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe. Amzanig huh? yaeh and I awlyas tghuhot slpeling was ipmorantt! if you can raed tihs psas it on !!
Read this aloud:
optical illusion
