diff --git a/Implementing-post-scarcity-hardware.md b/Implementing-post-scarcity-hardware.md
index 2e371f4..0431bf4 100644
--- a/Implementing-post-scarcity-hardware.md
+++ b/Implementing-post-scarcity-hardware.md
@@ -18,7 +18,7 @@ What does this cost? About £15 per processor chip, plus £30 for memory, plus t
 
 ## Pass two: a virtual implementation
 
-OK, OK, this cobe is a pretty concept, but let's get real. Using one core of each of 64 chips makes the architecture very concrete, but it's not necessarily efficient, either computationally or financially.
+OK, OK, this cube is a pretty concept, but let's get real. Using one core of each of 64 chips makes the architecture very concrete, but it's not necessarily efficient, either computationally or financially.
 
 64 core ARM chips already exist: