Look at this point on the graph in relation to the y-axis. You will see that the counts per minute have halved in two days. This means that it has a half-life of two days.

Half-Life 2 is getting a "cutting-edge ray tracing" overhaul courtesy of Nvidia's RTX Remix modding tools, and there's a playable demo coming on 18th March ahead of a full release. As Nvidia ...