speeds like 10.000 words per minute are definitely fake if you ask me, but it is still possible to increase your reading speed while maintaining a good comprehension level. 600 words per minute is quite easy to reach and with some experience you'll reach speeds even higher.
here's a great article on speed reading
5 Quick Steps to Increase Your Reading Speed and Comprehension Level Now
A lot of people think you have to read slowly to "let it all sink in" -this is a huge misunderstanding!
why speedreading works
the average "thinking speed" is around 1200 images/minute
the average reading speed is around the 225 words/minute
If you read slowly, your mind will probably "get bored" and start all kinds of other processes in the background, and before you know it, your minds starts to wander off....You flip through the pages, but when you snap out of it, you have no idea what you've just read.
Why do people read slowly?
If people learn how to read, they learn to read out loud. And in this way, they learn to read at the same rate they speak. They get accustomed to a low reading speed.
The five steps to speedreading
1. Sit upright and alert! 30% of the oxygen you inhale is needed for your brain, If you slouch, you mess up the supply to your brain. And, if you keep your head positioned at an angle, your equilibrium will send the message to your brain that it can go wander off and go to sleep.
2. Move your finger or a pen or something else(I prefer a marker) across the words, doing this instantly wipes out most problems with reading faster. Start the pen 1 inch after the beginning of the line, and stop 1 inch before the end of the line, your eyes can capture several words at once, in this way it's one eye movement less.
3. Read with a rhythm, try 1 line/second for instance
4. Match your speed with the text, If it's complex, read slower, If it's boring, read faster.
5. Before you read a book, flip through it once, from beginning to end and look at every page, this only costs a few minutes.
Good luck increasing your reading speed!
http://www.xomba.com/5_quick_steps_to_increase_your_reading_speed_and_comprehension_level_now
http://www.xomba.com/speed_reading_reality_or_myth