How do fish swim so quickly? Explained to great effect by professor of applied mathematics Tadashi Tokieda using a bathtub.

Amandine Le Pape (of Element.io) makes some excellent points:

Open APIs are a good first step, but we must eventually have open standard based interoperability.

An open standard is far more secure than open APIs and today’s siloed apps. An open standard can ensure end-to-end encryption (and much more) between competing apps - and be audited independently for the benefit of all.