Panasonic has said they'll be releasing 8K Cameras by the year 2020. This caused a lot of stir when it first cropped out, with people suggesting that 8K on a 4/3 sensor would be absolutely crazy, so it was a sign that Panasonic was planning to strike upmarket into the a FF - or at least Super35 - sensor. But I'm not sure that conclusion logically follows at all. 8K is 33MP @ 16:9. For a 4:3 aspect sensor, you'd need 44MP. Yeah, that's a lot of pixels, to be sure. That's 2.2 micron pixels, down from the 3.7 micron pixels we've got now. But at the same time, people today already love to compare the image quality of the 20MP Sony 1" sensor with the 16MP 4/3 sensor. That sensor punches well above its weight, both in terms of dynamic range and ISO performance, being only about 2/3 EV worse than M4/3 (theoretically it should be a full stop behind). That's significant, because that Sony - now a several year old sensor - already has 2.4 micron pixels! Is it really shocking to suggest that Panasonic could achieve within 4 years, the same results that Sony was able to achieve 2 years ago? More challenging than the sensor performance to me seems to be the readout speed and heat dissipation required, not to mention the responsiveness. But again, 36MP, 42MP, and 50MP cameras exist today, and people don't complain about their responsiveness. I think it's naive to suggest that the CPU and processing in a D800 are any more sophisticated than a top-of-the-line Panasonic, a company that has a long history in electronics. And again, the Sony RX100 IV and RX10 with their stacked CMOS designs are already most of the way there. Granted, those sensor designs may be years ahead of any competitor on the market (except for Samsung - RIP! ) but Panasonics got years to go for their planned line-up. And on the computing front, think of what your smartphone or laptop was like 4 years ago, and think about what it is now. Think about the price of solid-state drives. I paid $150 for a Kingston 120GB SSD 3 years ago, and spent the same amount for a (faster!) Sandisk Ultra 480GB this year. In 4 years, will we have 1-2 TB SSDs at consumer-friendly prices in order to handle 8K footage with aplomb? Am I crazy, or is 8K not so crazy after all?