Simple, reliable messaging. It takes a lot to support this statement. For 10 years WhatsApp demonstrated unprecedented reliability and availability, serving over 1.5B users. There is absolutely no way to reproduce interactions between all of them, within the cluster spanning over 10,000 nodes and multiple data centers. Investigations must be done on a live system without disturbing connected users. If there are repairs needed, it has to be done on the fly.

Try to avoid “technological aging”. Unlike biological aging, it is reversible.

If you’re not facing some kind of problem, you don’t need a new tool. Full stop. Don’t look for solutions and then back into problems. If you’re not facing a problem that a new technology doesn’t solve significantly better than your existing technology, then your decision is over. If you’re considering using this technology because you’ve seen others using it, it might be useful to think about what problems they are facing, and ask yourself if you’re facing the same problems. It is often easy to reach for a technology because you see another company using it, the difficulty is in determining whether or not you’re facing the same challenges.

Across the Internet ecosystem, people are busy doing things with IPv6. Mobile carriers have it, broadband carriers do it, content providers offer it, operating systems use it, the Cloud wants it, and IoT needs it. But all too often, and especially when we look at enterprises, what’s keeping the people pushing for IPv6 busiest, is convincing key stakeholders that they should invest in their own deployment.