Can I put 64GB of RAM in my 5K iMac?

Episode 1232
Robert fromRobert is frustrated that his iMac doesn't have enough RAM. 32GB is just not enough for editing 4K video. Leo says that it could be a hardware limitation. The most he can install is 4 to 8 GB sticks. He could invest in the Mac Pro instead, but Leo thinks its terrible. What is Apple up to? Leo says nobody knows. The iMac is faster, better and more reliable than the Mac Pro according to Leo. Will Apple change their tune? No. They want him to buy a Mac Pro if he wants that much RAM. So they have no reason to improve the RAM capacity in the iMac.