'So I think the next system humanity creates will be far more sophisticated, fair, and abundant than our current civilisation.

'I think our next system will be as different from the modern world, as our contemporary world is from the medieval world.'

'The biological clock isn't going to be around forever,' he added, and said that people could pause it for some time using future technology.

The change is already happening. Today, the average age at which a woman in Britain has her first baby has been rising steadily stands at 29.8.

In the US, just one percent of first children were born to women over the age of 35 in 1970. By 2017, that figure rose to 15 percent.

'As countries become socioeconomically advanced, more and more people, especially women, have the option to engage in cultural reproduction,' Mr Last added.

And as well as having more child-free years to enjoy leisure time, he believes artificial intelligence will offset the need for low-skill jobs.

We may also spend a large amount of time living in virtual reality.'I'm not quite sure most people have really internalised the implications of this possibility,' Mr Last said.

His views are detailed in a paper, titled 'Human Evolution, Life History Theory, and the End of Biological Reproduction' published Current Aging Science.

“环球大脑研究所”的卡德尔•拉斯特称，人类正在经历一场“革命性的转变”。受到新科技、新行为和自然选择的影响，将有一种全新的人类在2050年之前进化出来。

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