# Gavin Andresen
# 2011-11-27 18:38:19
# https://bitcointalk.org/index.php?topic=52859.msg632146#msg632146

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 @p{brk}
As Mike said, help on "initial headers-only download" would be much appreciated. @p{par}

Work-in-progress is here:  @s{(link)} @p{par}

... and my notes on issues that have to be worked out are here:  @s{(link)} @p{par}

As for scalability in general:  it looks to me like CPU time to validate transactions will be the bottleneck before bandwidth or disk space, so I don't see a strong reason to switching to a 'ledger' or 'balance sheet' method. Effective optimization/scalability is all about identifying and eliminating bottlenecks.  @p{par}


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