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Comment Re:Why not Coca Cola? (Score 1) 140

The PPM ones would have to be incredibly toxic to have direct impact. Researchers are left to search for tiny little changes in microbiome and insulin response. Negligible, especially with the baseline health of obese people.

There are scary studies for the sugar alcohols, unfortunately truly abominable science.

Comment Get it from general revenue (Score 3, Funny) 195

Having a million separate taxes is a legacy from a distributed type of governance which has long stopped existing. All layers of government should get the vast majority from property, capital gains and estate taxes.

Some disencentivization taxes can be appropriate, but road transport in general is not something to disencentivize in my opinion, only a small part is luxury spending.

Comment Re:Cooling? (Score 1) 90

Solar PV sails would have film with metallised aluminium on the back, a bit of vacuum then more aluminium, then a blackbody HOPG film with liquid cooling channels (for its thermal conductivity at low weight). The silicon would be distributed along the sails to minimise the distance the coolant has to travel.

Obviously.

Comment Re:DCs in space is just fucking delusional (Score 2) 90

The only reasonable way to make these PV behemoths is as heliogyros, otherwise it takes too much structural components.

They will sail the solar wind ... how that will actually look orbit wise, dunno, it's completely new territory and no one is doing the simulations yet.

Cosmic rays should be handled with resilient architecture, not shielding. Everything needs to be extreme light weight, at most you could generate put a couple megavolt between wire electrodes to guide charged particles to avoid the sails (flexible PV on one side, cooling foil with cooling liquid channels on the other side, bit of vacuum in between).

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