\subsubsection*{Speed}
Communication gets faster in general. Slow mediums as letters get substituted by electronic mail, which is delivered within seconds. Also communication becomes more transmitted through digital channels. This can be seen at the telephone which's information is now more and more transported in bits over the internet link. Also telefaxes are succeeded by email or are transported within email. Instant messaging can be seen as the written couterpart to the telephone; not to substitute it completely, but to be used if it is more useful for the information to transmit.

Many of the digital communication methods gained success by beeing cheaper than their counterparts. One example here is instant messaging in contrast to the telephone. As phoning costs fell, it became more popular again. The last years showed, that communication cost degreased dropped generally, caused by the transport through digital channels. And nothing to see, that would make them rise again.

It seems as if in future will be low-cost communication methods available, which will be digitally transmitted.


