diff --git a/ch06.asciidoc b/ch06.asciidoc
index 27327ba5..d015b60c 100644
--- a/ch06.asciidoc
+++ b/ch06.asciidoc
@@ -677,7 +677,7 @@ Note that in verifying the signature, the private key is neither known nor revea
 
 [TIP]
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-The math of ECDSA is complex and difficult to understand. There are a number of great guides online that might help. Search for "ECDSA explained" or try this one: http://bit.ly/2r0HhGB[].
+ECDSA is necessarily a fairly complicated piece of math; a full explanation is beyond the scope of this book. A number of great guides online take you through it step by step: search for "ECDSA explained" or try this one: http://bit.ly/2r0HhGB[].
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 ==== The Importance of Randomness in Signatures