OpenAI is reportedly nearing AI systems that can reason. Here's why that could be a cause for concern.

• OpenAI has shared a new five-level scale to mark progress toward artificial general intelligence.
• The company told employees it was nearing AI systems that could reason, Bloomberg reported. 
• Experts say systems that can reason would be a "very significant" jump.

OpenAI has a new scale to mark its progress toward artificial general intelligence, or AGI.