With the previous reflections on [[Perception of Time]], I've been thinking how 30 mins spent surrounded by 4 walls feels so much quicker than what one experiences with a 30 mins of walk. But I feel there's a bigger, brighter and broader picture to it. Staying 30 mins indoor is presumably in a very familiar environment like home. And actually going out and walking is steeping into a not so familiar setting which increases the degree of randomness in mind. As with siting indoors mind's already familiar with the usual things around us and on the contrary the experience of newness spikes when it sees things outside which it is not familiar with already. It again invests me into thinking that time is a perceived phenomenon. Everything which marks progress is bound by movement. Earth rotates and revolves, we experience something in one place, and it is when we move away to another we experience something different, for say weather, in the subtropical region I live in, North is cooler and South is more warmer. Movement changes perception? In order to progress, it was necessary to fake perception of movement within the mind, time was introduced.