Perl follows the exact same model for numbers.

No, it doesn't. As I demonstrated above, variables holdiing numeric values are **NOT** immutable. Constants are (to use your own word) obviously immutable. But variables are not constants. And variables are not immutable.

Also declaring something that contradicts your line of thought as "meaningless" without any explanation isn't very good style of discussion.

No explanation is necessary. You already demonstrated above that you know this is nothing more than an obvious non sequitur to the threads subject. Hence, further discussion is meaningless and pointless.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^12: The fallacy of the *requirement* for read-only instance variables. by BrowserUk
in thread The fallacy of the *requirement* for read-only instance variables. by BrowserUk

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