Over the next 18 years, global copper demand (growing in line with GDP alone) will require roughly 700 million tons of copper — as much as has been mined in the last 10,000 years of human history.
“Now, listen carefully. That means over the next 18 years, we're going to need 700 million tons of copper. Over the next 18 years, we're going to need as much copper as we mined in the last 10,000 years.” View on YouTube
This is an 18-year demand forecast (through roughly 2044) for cumulative global copper consumption; the timeframe has barely begun and cannot yet be assessed.