glasshouse:for all you ten guys that say it cant be done, one person will go and do it, right under your nose.
I also didn't say it can't be done, but in much the same way as OldMacdonald says, you may need to think outside of the box a bit, direct marketing and engaging with end customers, adding value to what is produced. In my opinion, a subsidy is anything which is outside of an unviable business which keeps that business going - to me B+B subsidises a lot of farms around here, I don't think a subsidy has to come from government.
What I said was that it couldn't be done with 'standard practice' farming. Buying a dairy farm, producing however much milk and sending it off on the tanker, once proper costs have been taken into account is not profitable in the slightest, and therefore is not sustainable - you may get the borrowings to buy the farm, but if the income won't match the repayments, you won't have it for long - buy with savings, wherever you got those savings from has subsidised the farm - rent, if this is lower than the repayments on buying, the landlord is subsidising the farm. Your own labour should be valued at the the cost of getting someone else to do the job, otherwise you are subsidising the farm.
These scenarios from the dairy sector can be transferred to any other sector. So is farming sustainable without subsidy - if the business cannot stand on it's own two feet and repeatedly make a profit, then no.