There is a phrase I heard someone say which went like “this product is the snack of the future” or “ this will revolutionize the technology space in the future”. Would these phrases be haram or kufr as it kind of sounds like the person is talking as if he has knowledge of the future?

Ustadh AbdulAziz al-Haqqan

You suffer from waswas and that is what you should be tackling now may Allah reward you.