Avoiding the dogma - a plea for mutable objects

Unfortunately there is too much advice given online about the right way to write software that often tends to be very dogmatic and is outright harmful if not understood correctly. One prime example is the demand that all objects should be immutable to avoid problems.
I will show you why we should avoid these kind of dogmatic thinking and why immutability might not even be something you want to strive for. As an alternative I will introduce you to ProxyObjects as a more flexible alternative