<div class="gmail_quote">On 20 December 2011 22:43, Eugen Leitl <span dir="ltr"><<a href="mailto:eugen@leitl.org">eugen@leitl.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im">On Tue, Dec 20, 2011 at 08:26:08PM +0100, Stefano Vaj wrote:<br>
<br>
> Could we ourselves really make us blatantly visible to a civilisation the<br>
> other side of Andromeda even if we considered it a top civilisational<br>
> priority?<br>
<br>
</div>Best bang for the buck would be lasers. You can easily outshine<br>
the Sun in narrow enough spectral bands.<br></blockquote><div><br>But you should know where to point it at, right?<br> <br></div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Dimming a galaxy would not be any more difficult than dimming a<br>
single star.<br clear="all"></blockquote></div><br>Due note taken, if ever I end up finding Andromeda too shiny... :-)<br><br>Seriously, interesting stuff.<br><br>-- <br>Stefano Vaj<br>