What is an IP address and why do they change?  Will we ever run out of IP addresses?

Students are asked to decide whether they believe they will or will not run out and explain why.

FOR: https://www.siliconrepublic.com/comms/ip-addresses-running-out

AGAINST: https://hbswk.hbs.edu/item/when-the-internet-runs-out-of-ip-addresses