¹⁵(Minut and Mahadevan, 2001; Mnih et al., 2014; Greff et al., 2016). Attention is fundamentally a form of action: even moving your eyes can be seen as a form of attention, since it helps to select certain parts of your environment for visual processing. Thus, learning to attend may be possible by the same principles by which an agent can learn to act in intelligent ways, discussed in Chapter 3.