The .mq4 file extension is the ghost in the machine of the financial world. Let me tell you a story about it. In the flickering blue light of a Bangkok condo, at 2:47 AM, Alex watched the Yen tumble. He wasn't watching the news. He wasn't reading a chart. He was watching a single line of text scroll past in the "Experts" tab of MetaTrader 4.
And the robot wakes up.
For three weeks, the .mq4 slept. It watched. It logged "spread normal" 40,000 times. at 2:47 AM
