I don't mind this notion in the sense of 'our sensory instruments can never/we can never know if they truly reflect reality', but the platonic/neoplatonic versi

I don't mind this notion in the sense of 'our sensory instruments can never/we can never know if they truly reflect reality', but the platonic/neoplatonic version where there's an idealised real world everything we see is a poor imitation of always bugged me