Do you want to live forever? By the year 2050, you might actually get your wish -- if you are willing to leave your biological body and live in silicon circuits  .But long before then, perhaps as early as 2020, some measures will begin offering a semblance of immortality  . Researchers are confident that technology will soon be able to track every waking moment of your life. Whatever you see and hear, all that you say and write, can be recorded, analyzed and added to your personal chronicles  . By the year 2030, it may be possible to catch your nervous systems through electrical activities, which would also keep your thoughts and emotions. Researchers at the laboratories of British Telecommunications have given the name of this idea as Soul Catcher. Small electronic equipment will make preparation for Soul Catcher. It would use a wearable supercomputer, perhaps in a wristwatch, with wireless links to micro sensors under your scalp  and in the nerves that carry all five sensory signals. So wearing a video camera would no longer be required. At first, the Soul Catcher's companion system -- the Soul Reader -- might have trouble copying your thoughts in complete details. Even in 2030, we may still be struggling to understand how the brain is working inside, so reading your thoughts and understanding your emotions might not be possible. But these signals could be kept for the day when they can be transferred to silicon circuits to _ minds everlasting entities  . Researchers can only wonder what it will be like to wake up one day and find yourself alive inside a machine. For people who choose not to live in silicon, semblance of immortality would not be as useless as they thought. People would know their lives would not be forgotten, but would be kept a record of the human race forever. And future generations would have a much fuller understanding of the past. History would not be controlled by just the rich and powerful, Hollywood stars, and a few thinkers in the upper society. The main idea of this passage is that   _  .
human beings long for living forever there are many difficulties in making the Soul Catcher people might live forever as technology develops the invention of Soul Catcher has great importance