[horrido]

It's Uncle Bob who says objects are bags of functions. And this is not specific to Smalltalk nor dynamic languages. In Java, C#, and C++, objects are still just bags of functions.

[noblethrasher]

Java and C# allow you to expose mutable fields, so objects are not strictly (or even ordinarily) just bags of functions.

[crimsonalucard]

Yeah but objects in those languages are also bags of data, which he explicitly said they are not.