we have the opportunity to speak with chris ailman. the chief investment office at calstrs. they manage $307 billion the last time chris and i spoke was just after engine number you one, the hedge fund, secured three board seats on the exxonmobil board with the backing of calstrs he told us then about the closed-door talks that calstrs had with engine number one and exxon over the course of the months leading up to the vote. yesterday, with that board victory in mind, we asked chris if exxon was an isolated event or a start of a seismic shift and he and the industry approached activism? >> brian, it's both. we have three board members on that board which is massive. if you go back to look at may and the end of may, i think for the integrated oil and international oil industry, it was an historic day. we got three board members on exxon. chevron got told to increase their disclosure by their shareholders then royal shell was told by the regulator to up their efforts in moving to a low carbon output. huge day the beginning of the new era it was a new day in terms of shareholder