diff --git a/notes.md b/notes.md
index 7b1f05d89..9f8a4d11d 100644
--- a/notes.md
+++ b/notes.md
@@ -143,3 +143,4 @@
 2019-12-29T17:54:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (transformers)
 2019-12-29T22:32:00 - Refactor for clarity, might break a few tests though (transformers)
 2019-12-29T20:53:00 - Late-night bugfix on financial RL environment (transformers)
+2019-12-29T00:10:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (transformers)