I strongly suggest that you rework how Memories function. The whole idea of putting objects in a growth tank to infuse traits has never made ANY sort of sense to me. And it especially makes no sense that we can't use these objects over and over.
Instead, I suggest that found memory objects add permanently to a pool of data that allows us to infuse Humans with one or more traits. So the more you explore, the more Memories you find, the better Humans you can make. In the growth interface, we'd be able to specify exactly how much of which three traits we want to give our new human, for precise control of professions. (I also find that I have to essentially waste lots of memory objects to get who I want under the current system, and it just leaves bad data in my CPU.)
The numbers would need to be reworked. Either each found object would have to give one or a bare handful of points in a given trait, perhaps even a fraction. Or else the numbers of traits needed for different professions would need to be massively increased. Otherwise even minimal exploration would let us make T4 humans. I love the way you guys have hidden caches of memories all over the place to reward psycho explorers like myself, and there should still be definite payoff for exploring. You should need to explore quite extensively (though not necessarily everywhere) to find enough memories to be able to grow Tier 3 and 4 humans. I trust you guys to balance things if you choose to adopt this.
Perhaps integrate this with the forthcoming data cables and computer systems? Maybe we need to put memory objects into a device which consumes and digitizes them, and then we must transfer this new memory data into the mainframe at Lazarus. /shrug
So, TL;DR - the way memories work just doesn't make sense to me. I urge you to at least consider reworking it before the game is finished and it's too late. ❤️