Here is my opinion on things at 0 K
The possibility of matter growing as cold as 0 K lies between two 'values':
1) 0 K is unreachable-> All matters always stay in motion
2) the temperature may reach 0 K, but cannot stay at 0 K-> 0 K implies no energy, at the instant the electron stops moving, the kinetic energy is 0, but the gravitational and electrical forces causes the electron to move again, and then it fuses with proton to release energy.
Personally, probability 1) is the most possible.
The possibility of matter growing as cold as 0 K lies between two 'values':
1) 0 K is unreachable-> All matters always stay in motion
2) the temperature may reach 0 K, but cannot stay at 0 K-> 0 K implies no energy, at the instant the electron stops moving, the kinetic energy is 0, but the gravitational and electrical forces causes the electron to move again, and then it fuses with proton to release energy.
Personally, probability 1) is the most possible.