It also addresses signature malleability, by moving signatures out of the transaction data, making them impossible to change. The transaction ID is no longer malleable. This makes bitcoin safer to use with Lightning Network, a way to speed up small payments by bundling them and only writing to the blockchain at the beginning and end of their execution, which would be (slightly) risky while the malleability problem still exists.
Hunter-gatherers tend to have an egalitarian social ethos, although settled hunter-gatherers (for example, those inhabiting the Northwest Coast of North America) are an exception to this rule. Nearly all African hunter-gatherers are egalitarian, with women roughly as influential and powerful as men. Karl Marx defined this socio-economic system as primitive communism.
Well, Unity does have LoadLevelAdditiveAsyc which is a foundation for streaming levels continuously (plus some of the Pro features to help with this are now free in 5). Unreal has level streaming. It's not that there's no support. It's that the real question is what kind of data loading does a particular game actually need.