Mr. Paul Goldrick-Kelly:

The idea essentially is that history matters and that you can make decisions that could have unintended consequences and will narrow your choices going forward. The concern for carbon infrastructures is that were we to take choices now in the short term that may make sense, they may not be consistent with longer-term plans. We have to be very careful about constructing expensive new infrastructures that we may have to, for example, subsequently decommission. That is the idea.