A brutal example of commoditise your complements: you can see an economy as capital, land and labour. Labour employs capital to extract value from land.
The fear here is that capital replaces labour, leading to the value of labour dropping to zero and the value of capital and land increasing alone.
But is labour being replaced, or augmented as it always is by capital? Industrialisation augmented labour more efficiently, but the value of labour has still increased in real terms and has not dropped to zero.
That said, I would invest in capital and land now and not in labour.
The fear here is that capital replaces labour, leading to the value of labour dropping to zero and the value of capital and land increasing alone.
But is labour being replaced, or augmented as it always is by capital? Industrialisation augmented labour more efficiently, but the value of labour has still increased in real terms and has not dropped to zero.
That said, I would invest in capital and land now and not in labour.