Kant- page 31-35

Kant says, "Hence we may at once dismiss as easily foreseen but futile objection, "that by our admitting the ideality of space and time the whole sensible world would be turned into mere illusion." Kant says that the ideas of space and time can be explained as illusios to our mind. He says that space can be regarded as phantasms to our brain. It is true how does our brain see 3-dimentional? We do not set our brain to a setting to do so, it does it all by itself. The other part of this is time. We tell time, count time, plan time etc. What is time? It is merely a setting. It is just an agreement as is language and math. I guess we can then say that time is a priori. Time is something that everyone knows and we learn how to tell time at a very young age. Imagine if time was unknow and there were no such thing as clocks and calendars, I think the world would be very much chaotic, don't you?