The question "how fast is" is very general and can relate to many things such as internet speed, the speed of light, human running speed, or any object's speed. Could you please specify what exactly you are asking about the speed of? For example:

• How fast is the internet speed?
• How fast is the speed of light?
• How fast is a human running?
• How fast is a cheetah running?

This will help provide a precise answer tailored to your question.