A plain look at how models work through a problem step by step.

People who work in the field say the direction is clear, even if the timing is not.

For buyers, the practical question is simple: what does this cost, and what does it replace?

What to watch

• How fast others follow.
• What it does to prices.
• Who gains and who loses ground.

What matters most is not the headline number, but how steady it stays over time.