First Facebook tried to pivot into mobile, pushed really hard for a short time and then flopped. Then Facebook tried really hard to make the Metaverse a thing, and for a while, but eventually Meta stopped finding it interesting and significantly reduced investment. Then AI was the big thing and Meta put a huge amount of money into it, chasing after other companies, with an arguably novel approach compared to the rest of big tech... but now seems to be backing out or at least messaging less commitment. Oh and I think there was some crypto in there too at one point?
I'm not saying that they should have stuck with any of these. The business may not have worked in each case, and that's fine, but spending billions on each one seems like a bad idea. Zuckerberg is great at chasing the next big thing, but seemingly bad at landing the next big thing. He either needs to chase them more tentatively, investing far less, or he needs to stick with them long enough to work out all the issues and build the growth over the long term.