Your guys really aren't understanding what the people saying "impossible" mean. He asked in his title if he could create a bot. Its VERY unlikely that he could program his own BOT without prior knowledge. A bot != a script means a bot doesn't equal a script, what he implied in his thread is he wants to make a script which is very possible.But a bot is a whole different story which requires a large scale project and a bit of time. Think about all the things a bot needs to recognize just starting with id/entity id's would be a pain. How about making every single antirandom script for his bot? This doesn't even begin to go into allowing his bot to register scripts ext.
Summary: You meant to ask "can I make a script" not a bot.
Unless this guy is some Mozart of programming.