Is the Blue Light Tower the new 19th Century Memorial Obelisk?

For a hundred years, the stone obelisk became western civilization’s preferred memorial for important individuals and death in wars.  Recently, the blue tower of light has emerged as the new memorial including the new “Spectra” by Ryoji Ikeda in London for WW1 dead from the UK. 

A few differences:

– Momentary vs Permanent
– Night vs Day
– Photographs Blue vs White
– Random Location vs Urban Design

Since 2008, Kyoji Ikeda has installed Spectra in Barcelona, Paris, Sharjah-AE; Hobart-Tasmania; Buenos Aires, Nagoya-Japan, Amsterdam