So in the 60's 2 million population was enough, therefore they say "stop at 2, 1 is enough." After Goh took over the population started increasing and like a frog in the slow-boiled water we discovered the population has suddenly increased to 3.31 million.
Together with foreigners the population is now about 5.4 million.
With the target to reach 6.9 million by 2030, will that be enough? If we look back into the past and the continual addition of foreigners to increase the population, the contention by the PAP was that we need more people to increase jobs and GDP. When will there ever be a time when Singapore no longer need a larger population to increase jobs and GDP? NEVER!