By Oliver Griffin

SAO PAULO (Reuters) -The world should watch out for three possible bubbles in financial markets, including artificial intelligence, the head of the World Economic Forum said on Wednesday, in comments that came amid sharp falls in global technology stocks.

Brokers and analysts say the falls are a cause for caution but not panic as markets have been touching record highs and some valuations are looking overblown.

“We could possibly see bubbles moving forward. One is a crypto bubble, second an AI bubble, and the third would be a debt bubble,” WEF president Borge Brende told reporters during a visit to Brazil’s financial hub, Sao Paolo.

Governments have not been so heavily indebted since 1945, he added.

Markets have for months shrugged off concerns over elevated interest

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