diff --git a/README.md b/README.md
index 2f75626..e7c8c67 100644
--- a/README.md
+++ b/README.md
@@ -32,9 +32,9 @@
 #### 9. no constraint on granularity: the scope of the arrows between space units is not limited
 #### 10. the computation is local, random, asynchronous
 #### 11. interfaces are possible with statistical and / or continuous fermion models:
-- spaces are then superimposed and conditions on intensive local variables (concentrations, temperatures, flows, etc...) can be added to the specific conditions of the gem-graph.
+- times and spaces are then superimposed and conditions on intensive local variables (concentrations, temperatures, flows, etc...) can be added to the specific conditions of the gem-graph.
 #### 12. interfaces are possible with representations of bosons:
-- spaces are then superimposed and conditions on intensive local variables (flux, cross section, etc.) can be added to the specific conditions of the gem-graph.
+- times and spaces are then superimposed and conditions on intensive local variables (flux, cross section, etc.) can be added to the specific conditions of the gem-graph.
 #### 13. the topology, the dimension and the magnitude of the space are not constrained
 
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