diff --git a/TODO.FACTOR.txt b/TODO.FACTOR.txt
index 2f98471d44..08a8ca18b3 100644
--- a/TODO.FACTOR.txt
+++ b/TODO.FACTOR.txt
@@ -30,4 +30,6 @@
   - call and compile-1 give  C{ 0.0/0.0 0.0/0.0 }  0.0/0.0
 - 2.718281828459045e+19 [ dup float? [ sech ] when ]
   - call/compile-1:  C{ 0.0/0.0 0.0/0.0 }  0.0
-- 0.0/0.0 next-power-of-2 causes gc forever
+- 0.0/0.0 next-power-of-2 never terminates -- comparison always returns false
+- 0.0/0.0 >fixnum .  -> 0    0.0/0.0 >bignum .  -> 0
+