My take was that they currently have a working chiplet design and are looking to move to a wafer-scale (i.e. not cut up) design. Thermal/power/yield are all is

My take was that they currently have a working chiplet design and are looking to move to a wafer-scale (i.e. not cut up) design. Thermal/power/yield are all issues and the design has to take all of that into account. Cerebras has done it for their NN processors, so it has been done before.