diff --git a/Memory,-threads-and-communication.md b/Memory,-threads-and-communication.md
index 8f63394..9cf18fc 100644
--- a/Memory,-threads-and-communication.md
+++ b/Memory,-threads-and-communication.md
@@ -1,3 +1,4 @@
+*Note that this essay is largely obsoleted by the idea of a hypercube architecture, with each node having its own curated page of memory.*
 
 There are some problems you don't really see until you start to build something.