diff --git a/README.md b/README.md
index 57981fc..8a02ea1 100644
--- a/README.md
+++ b/README.md
@@ -190,7 +190,7 @@ out.write(ss + "\n")
 
 ## Towards RWKV-5 (just to record some new ideas)
 
-### List of some ideas
+### Some ideas
 
 1. Now time decay is like 0.999^T (0.999 is learnable). Change it to something like (0.999^T + 0.1) where 0.1 is learnable too. The 0.1 part will be kept forever.
 
@@ -198,6 +198,10 @@ out.write(ss + "\n")
 
 3. Inject some trainable and interpolable positional encoding?
 
+4. Aside from 2d rotation, we can try other Lie groups such as 3d rotation ( SO(3) ). Non-abelian RWKV lol.
+
+5. RWKV might be great on analog devices (search for Analog Matrix-vector multiplication & Photonic Matrix-vector multiplication).
+
 ### Misc
 
 I have an idea to improve tokenization. We can hardcode some channels to have meanings. Example: