Review written by Qiwei Yu (G2, Biophysics)
The stream of time flows inevitably forward and stops for no one. This one-way direction defines an “arrow of time”, which we perceive through the lens of irreversible processes that occur in both inanimate and living worlds. Irreversibility is manifested at both microscopic and macroscopic scales, ranging from the dissolution of an ink droplet in water to the concerted flight of large flocks of birds.
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