I recently asked an Intel chip designer if asynchronous circuits could be a way to deal with stalling of Moore's Law and he was adamant that asynchronous circui

I recently asked an Intel chip designer if asynchronous circuits could be a way to deal with stalling of Moore's Law and he was adamant that asynchronous circuits are a "fantasy." His argument was that even though synchronous use about 20% of the energy on a modern, chips, with asynchronous you still need to pass around synchronization tokens which would double the energy required and worse it would be on the critical path.