It may not stop in the other direction.
For example to make a supernova you need fusion.
Perhaps it stops at the Big Bang, but it ain't necessarily so.


On Sun, Nov 24, 2013 at 7:15 PM, LizR <lizj...@gmail.com> wrote:

> And to make a chemical bomb explode you need a detonator, I assume, and to
> make that you need a source of electricity, I imagine, which is also down
> to chemical energy of some sort. However I imagine the buck stops here, or
> hereabouts.
>
>
> On 25 November 2013 13:12, Richard Ruquist <yann...@gmail.com> wrote:
>
>> That reminds me of turtles all the way down.
>> To make a fusion bomb, you need a fission bomb;
>> and to make a fission bomb you need a chemical bomb.
>>
>>
>>  On Sun, Nov 24, 2013 at 5:40 PM, LizR <lizj...@gmail.com> wrote:
>>
>>>  On 24 November 2013 21:36, Bruno Marchal <marc...@ulb.ac.be> wrote:
>>>
>>>>
>>>> And - PLEASE - do not forget the *G U N S !*  (Not that only guns
>>>> could kill, but they are the easiest to use in killing other human beings.
>>>> And it brings huge advantage to entrepreneurs and State Governments).
>>>>
>>>>
>>>> We should not prohibit guns either (although we could enforce serious
>>>> regulations, and try to avoid selling efficacious automated guns to
>>>> neurotic kids).
>>>> In principle, I am in favor of the personal atomic bomb (take this with
>>>> some amount of grains of salt).
>>>>
>>>
>>> Also my viewpoint. With a grain of salt.
>>>
>>> Actually it doesn't seem hard to make an atomic bomb if you have the
>>> materials. It's kind of surprising no one has done so (or stolen one for
>>> ransom, as per "Thunderball".)
>>>
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