Are the critiques in "All the things I hate about Python" valid?

[Chris Angelico]

On Wed, Feb 21, 2018 at 9:01 AM, Rick Johnson
<rantingrickjohnson at gmail.com> wrote:
> On Tuesday, February 20, 2018 at 2:51:56 PM UTC-6, Chris Angelico wrote:
> [...]
>> Nope. Even if you need the age many times per second, it's still
>> better to store the date of birth, because you eliminate boundary
>> conditions and duplicated data.
>
> You failed to provide any examples proving this assertion of
> yours. I can't imagine how either would be a problem.

https://en.wikipedia.org/wiki/Database_normalization

I'm not going to do your research for you.

ChrisA