Fifth Dimension?

All of us have heard about the 3 dimensions in space.If I understand correctly,time is considered to be the 4th dimension.Is there any other dimension yet to be explored.Lately it seems so....In this 21st century tech savy world ...cyber-space can definatey be the fifth dimension.Dont you think you are in a different dimension altogether when you chat online.The way u exchange your ideas and present yourself.Sometimes I think is it for real or an illusion.
Yes though the means of conveying the message is different,but you still remain the same in person and in cyber-world.
Still follow the same principles in your life.
Still think about the people who care.
Still think of your past,present and future.
Still dream of making it big one day.
Still.........Still...........
The list never ends.................