Maybe I'm becoming cynical in my old age, or maybe I've watched too many episodes of 'Conspiracy Theory' but what I see thru my disillusioned eyes are different tribes of charlatans, shaman, magicians in the corridors of power. Each armed with Spin doctors with their own positions and agendas. Some deflect, some distract, some misdirect, most commit slight of hand - conjuring grand illusions to wow the masses.
The illusion/trick only works if enough of the audience believes. Some know its not real, but are unable to prove its not real. The best lies are those intertwined around some aspects of truth/reason. Appealing to those that want to believe.
HSR - why is it important, who wants it, who needs it, huge costs to the nations/taxpayer, serves/benefits only the few. (Medini/Gerbang residents no less) Why is it even feasible/on the radar... Cause foreign powers are falling over each other (in low interest environment) to lend you lots of money that you will be indebted to, for decades. (Sounds exactly like the Hinkley nuclear power station.UK). Seems like a good deal, don't have to fund it (in the beginning), creates jobs, leaves a legacy, makes the nation proud/feel good factor. But just because you can, doesn't mean you should.
What's in it for SG? The only thing I can think of is an underlying strategy not related to travel/transportation. We have the best transportation experts, the best defence strategist. They know the score.