I am a materials science major. It means that I have to often listen to the wonderful and promising properties of perovskites and the capabilities of various materials based on them. Every single one of these talks ends with a remark about low stability of these materials preventing the real-world usage. I can't help but wonder, maybe these compounds are doomed to be decomposing to respective oxides after a few minutes? Will there be a point when people get off the dead, oxidized horse and move on?