> point source capturing co2 from burning fossil fuels and then turning it into more liquid fuels that you then burn again is madness. you get that right? Only

> point source capturing co2 from burning fossil fuels and then turning it into more liquid fuels that you then burn again is madness. you get that right? Only if you equally value energy at the time of burning and the time of conversion. Imagine a natural gas peaker plant that captures CO2 during its typical operation, but it converts that CO2 back into a synthetic fuel during periods of energy surplus (when renewables provide more than 100% of the demand). The synthetic fuel is then essentially a battery, which just happens to be energy-dense. There also reasonable ways of acquiring a "green" CO2 stream that does not involve fossil fuels; non-liquid biofuels (ex, cellulose or charcoal) would work here.