Sony RX10 Mark IV is a Paradox: Big, Fast, Slow, Small

You can belittle it if you want, but the do-it-all RX10 IV is an incredible engineering feat, addresses the single biggest issue of the Mark III (autofocus), and really makes you think long and hard about just how much better a top end DSLR and prime telephoto have to be in order to justify the difference in price.