Memory/Memories

The word ‘memory’ can be either a countable noun or an uncountable noun. When the word ‘memory’ is used in general, the uncountable noun should be used. However, I have a doubt here.

I came across this sentence ‘People have short memories’ in the Oxford Advanced Learner’s Dictionary (oxfordadvancedlearnersdictio … ary/memory).

From how I perceive it, the word ‘people’ means persons in general, so the word ‘memory’ should take a general meaning, and it should read ‘People have short memory’.

I do not understand why the word ‘memories’, which is a countable noun, can be used to describe persons in general. Please enlighten me.

Thanks in advance.

People is the plural form of person.

More than one person, so more than one memory.

People - plural
memories - plural. The word is not being used in general here, it refers to the individual memory of each person.

So, is it correct if I replace the word ‘memories’ with ‘memory’ in the above sentence where memory is used as an uncoutable noun?

I’ve been taught that “people” is always plural.

But it would be acceptable for me that “people” is considered singular if one see them as a voting machine.

This people (people ~ nation) has short memory.

But I think that NES do not use the word people that way.
Do they?

Thanks

No, not unless you also replace ‘people’ with ‘person’

This person has a short memory.

Given that usage, then the use of the word ‘p[eople’ becomes even more confusing, because in that particular sense (nation) the correct usage would be:

‘These peoples have a short memory.’

This is the exception to the rule of ‘people’ being plural and not needing a suffix to make it plural.