SoftBank CEO bets AI boom will cement his tech legacy after billions in losses

SoftBank's CEO Masayoshi Son uses OpenAI's ChatGPT chatbot every day and believes AI will transform humanity in 30 years.
Son aims to win the AI race despite SoftBank losing billions on failed tech investments.
SoftBank plans to shift from defensive investing to offense mode to capitalize on AI.
SoftBank built up $35 billion in cash reserves while in defense mode from losses.
The IPO of Arm, SoftBank's chip unit, could raise up to $10 billion to fund new tech bets.