possible finally, i would like to take a moment to recognize the passing of our friend and colleague thomas laubachice has been indispensable and played a key role that will define this era he will be remembered for his intellect, but also his kindness we will miss him thank you. i'll now be glad to take your questions. >>> thank you, nick timeros? >> good afternoon, chair powell. you've got very clear about the committee's intentions on rates, not even thinking about raising rates. and low rates as to 2% my question is about -- does the guidance today apply to the current -- are there any make roe economic that you would -- and mvs purchases, and under what conditions would a decrease be appropriate thank you. to help foster acdadive conditions, that is already -- what i've been say, and what other central banks have acknowledged. >>> i would just say this, there are various ways and margins, and we'll continue to adjust to our plans as appropriate >> if i could follow up, i suppose the question but not give guidance when the fed has talked about with the two policy tools working together today we