64 kilobytes will be enough

We have lived up to the era of gigabytes and gigahertz. The contents of the hard disk of the first PC with which I dealt, about five times can fit into the RAM of my current computer. Not only we, but also the mastodon of the software industry, Corel with its CorelDRAW, survived to this fertile era.
And what? The latest version, licensed and with all service packs, sets a limit on the size of a single object in memory of 64 kB! Why? What should I do with a really complex object now? Ehh, money for the wind ...