E-cash and Interest

[Tim Philp]

I had been doing some thinking about E-cash and some of the implications. 
It seems to me that there is another element in the discussion that has 
not gotten very much consideration.
When you have your money in the bank, you are earning interest on the 
money (albeit not very much! <g>) and that money continues to earn 
interest until it is withdrawn. If you write a check to pay for 
something, that ends your interest accumulation for that money. 
With the E-cash systems that I have seen, you generate your own E-cash 
and have it signed by a 'bank' At that moment, it becomes like cash in 
your wallet and you loose interest that this money could be earning.
Has this issue been addressed, or am I missing something?
Regards, 
Tim Philp

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