Things to argue about over the holidays instead of politics
&quot;How many holes exist in a straw?&quot;<p>Any time I asked this question it produces some joyful brainstorming. It doesn&#x27;t matter if it is a room full of highly technical people(engineers, mathematicians) or a family dinner.<p>I&#x27;ve already heard most of the arguments from the topological definition of a hole to difference between a hole, a cavity and a hallow but it is still very fun for me to watch people getting excited over such a boring looking question. (: