CH02: remove some more unnecessary specific values

Will make updating the text in the future easier.

ch02.asciidoc

@@ -435,9 +435,9 @@ output. Alice will therefore "encumber" the output value with a demand
 for a signature from Bob.
 
 This transaction will also include a second output, because Alice's
-funds are in the form of a 0.10 BTC output, too much money for the 0.015
-BTC podcast. Alice will need 0.085 BTC in change. Alice's change
-payment is created by Alice's wallet as an output in the very same
+funds are contain more money than the cost of the
+podcast. Alice's change
+output is created in the very same
 transaction as the payment to Bob. Essentially, Alice's wallet breaks
 her funds into two payments: one to Bob and one back to herself. She can
 then use (spend) the change output in a subsequent transaction.
@@ -445,11 +445,7 @@ then use (spend) the change output in a subsequent transaction.
 Finally, for the transaction to be processed by the network in a timely
 fashion, Alice's wallet application will add a small fee. This is not
 explicit in the transaction; it is implied by the difference between
-inputs and outputs. If instead of taking 0.085 in change, Alice creates
-only 0.0845 as the second output, there will be 0.0005 BTC (half a
-millibitcoin) left over. The input's 0.10 BTC is not fully spent with
-the two outputs, because they will add up to less than 0.10. The
-resulting difference is the _transaction fee_ that is collected by the
+inputs and outputs.  This _transaction fee_ is collected by the
 miner as a fee for validating and including the transaction in a block
 to be recorded on the blockchain.
 
@@ -670,8 +666,8 @@ thereby making it more and more trusted by the network.
 
 ((("genesis block")))((("blocks", "genesis block")))((("blockchain
 (the)", "genesis block")))In the diagram in <<block-alice1>>,  we can
-see block #277316, which contains Alice's transaction. Below it are
-277,316 blocks (including block #0), linked to each other in a chain of
+see block the block which contains Alice's transaction. Below it are
+hundreds of thousands of blocks, linked to each other in a chain of
 blocks (blockchain) all the way back to block #0, known as the _genesis
 block_. Over time, as the "height" in blocks increases, so does the
 computation difficulty for each block and the chain as a whole. The
@@ -685,7 +681,7 @@ the process of mining and the way it builds trust in more detail in
 startref="MACover02")))
 
 [[block-alice1]]
-.Alice's transaction included in block #277316
+.Alice's transaction included in a block
 image::images/mbc2_0209.png["Alice's transaction included in a block"]
 
 === Spending the Transaction