> Gene Ward Smith gmail.com> wrote in
> news:25e13488-af72-4162-b958-afbb9c160fcd@s8g2000prg.googlegroups.c
> om:
>

>> On Dec 24, 10:07 am, Robert Clark yahoo.com>
>> wrote:
>>

>>> Kurzweil then claimed that longevity trends are
>>> accelerating so fast that the life expectancy will increase
>>> more than one year for each year that passes in about 15 years.

>> Back in the sixties, I read an article in Analog where the
>> author claimed speeds attained by humans were increasing so fast
>> that before the end of the century we would be able to travel
>> faster than light. It came equipped with a graph, which
>> extrapolated these speeds into an asymptotic blowup. Finding the
>> fallacies in this class of argument is left as an exercise for
>> the reader.
>>

> And practical fusion is only 20 years away.