The new Nat Irson content is most welcome (she's pleasant to talk, and a non-bimbo alternative to tame varmints is very useful), but it makes absolutely necessary to make silicon a renewable resource. As things stand, it would be very likely many players with non-bimbo PC would harvest and give all the existing silicon to Gianna or Vi well before they reach Uveto and have a chance to talk to Nat, unfairly locking themselves out of ever taming a varmint. Therefore silicon bags need to become a respawnable resource, at least as long as there is an un-tamed varmint on the PC's starship. I suppose any excess silicon that might be harvested and not disposed of any other way could be sold to Vi, or at least the usual 'I recycle eveything' people in game (Anno, Artie).