I thought the whole point of time capsules was to store stuff in them for far longer than 30 years i.e. for several generations. Seems to shame to be digging th

I thought the whole point of time capsules was to store stuff in them for far longer than 30 years i.e. for several generations. Seems to shame to be digging this up now. I can still vividly remember the tech I was using back in the early 80's and all the types of biscuits that they don't make any more.