Bitcoin is only resistant to tampering of historical records if you have a continuous expenditure of compute to maintain that tamper-proofness.
In the absence of substantial compute resources dedicated to maintaining the longest fork, there is in principle nothing stopping anyone from changing a historic blok and rolling forwards from that.
The good conductivity is a base physical property, not really requiring any external investment of anything to be maintained.
In the absence of substantial compute resources dedicated to maintaining the longest fork, there is in principle nothing stopping anyone from changing a historic blok and rolling forwards from that.
The good conductivity is a base physical property, not really requiring any external investment of anything to be maintained.