I am sure we are already familiar with staking right from time, but as we all know, the tech world we find ourselves keep redefining things for us and trying to build upon what we already have on ground to make things better and not quite long I started seeing some folks making mention of restaking and all but because I don't want to assume things I just wanted to ask for a better enlightenment, as I couldn't find enough resources to explain it better, I have although seen it associating with Swell and some others and so I will like to know if this is from ETH or BTC?