How Cloudflare blocked a monumental 7.3 Tbps DDoS attack

A DDoS gets some fraction of the entire internet to attack a single host.

As the internet gets more users and more devices connected, the ratio of DDoS volume to a single connections volume will only get larger.

Is there any kind of solution?

Banks have already figured out fraud detection through pattern recognition, ISPs can do the same. When a connection has never used more than 300/10 of a 1000/1000 link and 80% of that was TCP with dstport 80 or 443, then it starts doing /900 UDP to every possible dstport, maybe something is wrong?

"Your network is generating an extraordinary amout of traffic, which is likely the result of a virus-infected device. As a result, we have lowered your speed to 100/20. Please read the steps to check your devices and unlock your connection here: ____"