Kwasi Kwarteng speaks on tax cuts in the mini budget

The video discusses the UK's high tax burden and the government's measures to reduce it, including advancing a tax cut and reversing a National Insurance increase. The speaker argues that high taxes are unsustainable and hinder prosperity. The focus is on creating an environment conducive to investment and economic growth. The video concludes with a commitment to reducing taxes and fostering a favorable economic climate.

Why was the previous tax system described as unsustainable?

What does the speaker believe is necessary for economic prosperity?