I think that nostalgia is a very delicate theme, but no in general, but for each specific individual. Because every person has their own way of remembering things, and how they were before.

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It has been proved by science that you may be able to remember things, but, it is natural that you brain joins different images with different context in one. This is not bad, it may bring you happy moments and memories. 

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“What you end up remembering isn't always the same as what you have witnessed.” 
― Julian Barnes, The Sense of an Ending

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This is why I selected this filter, the black and white for representing the old moments or past, and the inverted colors for showing that not all is what it is, the confusions you may create with out knowing with your brain.