My understanding of "life" has changed since I learned how biology at a low enough level is mechanical. A virus is a mechanical structure with nothing that we

My understanding of "life" has changed since I learned how biology at a low enough level is mechanical. A virus is a mechanical structure with nothing that we normally consider "alive". It arrives at a cell by accident, and its mechanical structure happens to interact with the surroundings to literally drill into the cell and then interact with its contents, again mechanically.