> the information about what collided and when is carried away by the radiation This is where the thermal nature of the radiation emitted by the black hole com

> the information about what collided and when is carried away by the radiation This is where the thermal nature of the radiation emitted by the black hole comes in. Physicist use the term "thermal radiation" to mean it is in a mixed state that cannot encode information (crude analogy: as if someone has pressed all the keys of a keyboard at once, you see that some keys are being pressed but this "signal" cannot be decoded).