diff --git a/README.md b/README.md
index 063caab..3bb1940 100644
--- a/README.md
+++ b/README.md
@@ -415,6 +415,7 @@ Offer training wrappers
 - [ ] build out latent diffusion architecture, make it completely optional (additional autoencoder + some regularizations [kl and vq regs]) (figure out if latent diffusion + cascading ddpm can be used in conjunction)
 - [ ] Extend diffusion head to use diffusion-gan (potentially using lightweight-gan) to speed up inference
 - [ ] become an expert with unets, cleanup unet code, make it fully configurable, port all learnings over to https://github.com/lucidrains/x-unet
+- [ ] copy the cascading ddpm code to a separate repo (perhaps https://github.com/lucidrains/denoising-diffusion-pytorch) as the main contribution of dalle2 really is just the prior network
 - [ ] train on a toy task, offer in colab
 
 ## Citations