provide a substantive reply: "Cost estimates should be aggressive, yet realistic. Explain what this means. What is the impact on the project if the cost estimates are too conservative? What is the impact on the project if the cost estimates are too aggressive? When cost estimates are described as aggressive yet realistic, it means that the estimates should be ambitious, aiming to achieve the project goals at the lowest possible cost while still being achievable based on the project's scope, timeline, and resources. This approach is to minimize costs without compromising the project's success, quality, or feasibility. The impact on a project if cost estimates are too conservative are limited budget optimization, reduced competitiveness, underutilization of resources, and increased stakeholder dissatisfaction. Overestimating costs can lead to setting aside more budget than needed. This ties up resources that could be better used elsewhere in the organization. High cost estimates can make a project less attractive compared to competitors. It may reduce the chances of securing funds. Conservative estimates might result in underutilization of allocated resources, leading to inefficiency. Stakeholders may be dissatisfied if they perceive that the project is not providing good value for money or is over-budgeted. On the other